breaking news tonight. satsuma, florida. a 5-year-old little girl tucked into bed. five hours later she's gone. vanished. the back door propped wide open. daddy comes home from the night shift to find not a trace of little haleigh. bombshell tonight. a letter emerges in the search for haleigh outlining details of a party the night haleigh goes missing, a party fueled by drugs. at the party, misty croslin. with her, little haleigh. reports that night little haleigh accidentally ingests the heavy-duty painkiller oxycontin and dies. we have the letter. this as new stepmom misty croslin skips town after a bitter fight with haleigh's father ronald cummings. croslin's brother behind bars on a gun charge, leading to another break. in a late-night jailhouse interrogation we learn the brother finally confesses he goes to haleigh's house the night she goes missing, pounds on the door repeatedly, nobody home. phone records confirming ronald cummings tries desperately to reach croslin that night, no answer. where was girlfriend turned stepmother misty croslin during those crucial hours when haleigh goes missing? investigators focusing on a heavily wooded area draining a local pond in connection with haleigh. as girlfriend turned stepmom misty croslin flunks another polygraph, tonight, where is haleigh? >> okay, sir, let me talk to your wife. let me get some information from her. okay. can i talk to her? okay. >> how the [ bleep ] can you let my daughter get stole -- >> was haleigh cummings the vichlt a drug overdose? according to a letter allegedly from one of stepmom slash babysitter misty croslin's friends, haleigh died from an overdose of oxy kontin and then her body was thrown into a pond. >> i'll do anything to get her back. people think i had something to do with it. if i had something to do with it or knew where she was we wouldn't be sitting here today we would have her. >> the police claim he had were given a sworn affidavit by a friend of misty's that says misty, haleigh and a group of friends why wr partying at one of their friends' house the night of her disappearance. when haleigh overdosed the friends panicked shoved her body in a black bag and tossed her in a nearby pond. >> crystal, what do you make of the recent developments, the developments especially about misty croslin flunking a polygraph? >> well, i thought all along that she had something to do with it. and this kind of just proves it. she was the last one to see our daughter, and her stories just don't add up. >> police say they are completely ignoring the letter and are denying any existence of this alleged sworn affidavit from misty's friend. reports are all of the friends have been cleared. >> she is still the most important witness in this case. she's the last person to see the children. she was with them. she's an important person to be spoken to, and law enforcement needs to go get her. >> and tonight live to connecticut and the sudden disappearance of a gorgeous young ivy league doctoral student just before she's set to walk down the aisle. the 24-year-old beauty last spotted on grainy surveillance video walking into a yale research building. a false fire alarm mysteriously goes off in the building. people rush out. annie le never seen again. at nearly the exact hour le set to walk down the aisle, wedding dress on a hanger in the closet, flowers ordered, the girl's body found stuffed in a two-foot wall cable space there at yale's research building. in the early morning answers police storm a super 8 motel to arrest 24-year-old lab tech raymond clark on murder one. tonight, clark's alleged history of stalking, threatening, harassing women resurface's. his former girlfriend breaking her silence, revealing clark a control freak, during their relationship lashing out, dictating what she says, where she goes, even what she wears. we have the video. in the last hours investigators back at the crime scene, zeroing in on a basement washroom where mouse cages are cleaned. was this senseless murder over laboratory mice cages? and another twist. was suspect raymond clark fueled by steroids? >> a former girlfriend claims the man accused of killing a yale university grad student was extremely controlling. >> in a shocking interview with "good morning america" ray clark's ex-girlfriend was so scared of the yale lab tech, telling abc news clark would get very angry, often "frighten me. he'd get this little look in his eye, and sometimes it was just better to do what he said." >> he would frighten me. it escalated a lot after -- i mean, with the controlling issue it escalated from there. >> jessica dell rocco tells abc's "good morning america" clark told her what clothes she could wear and who she could have as friends. del rocco says clark sometimes got so angry she was frightened. >> in a matter of weeks jessica says clark went from the perfect boyfriend to becoming manipulative, controlling. >> it was anger, yelling. as the relationship progressed, like if things didn't go his way, then he'd make them go his way. >> good evening. i'm nancy grace. i want to thank you for being with us. bombshell tonight. was 5-year-old haleigh taken to a late-night party fueled by drugs where she ingested the heavy-duty painkiller oxycontin? >> i know i didn't do anything to that little girl. i would never hurt her. i mean, they love me. i mean, they look at me like their mom. >> did haleigh cummings die from an overdose of oxycontin? a letter obtained allegedly from a friend of misty croslin claims that haleigh got her hands on the powerful narcotic while at a party with mist sxwri her friends the night of the disappearance. >> now that you have been told, whether you accept it or not, that your wife has flunked a poly, have you asked her what happened? >> i asked her, but that -- i don't get any answers from her. >> the letter states that cops were given a sworn affidavit from a friend of misty's, who claims everyone at the party "freaked out" when the toddler overdosed, then put haleigh in a black bag and threw her into a pond nearby. >> look at her body language. there are so many tells that she's not telling the truth. she's saying no when it's supposed to be in the affirmative. a lot of shoulder shrugging. the tears that don't look very genuine. it's very disturbing to watch. >> police are denying any friend has come forward making these allegations and are said to be completely ignoring the letter. all of misty's friends have reportedly been cleared, and there are still no suspects in the case. >> as we go to air, we have just heard from local police who say in fact they are not ignoring this theory, that they have been vetting this theory along with several other theories about what has happened to little haleigh and that many points behind this letter are in fact credible and they are in fact investigating it. we are taking your calls live. first out to marlaina schiavo, our producer on the story. marlaina, what do you know about this letter? but most important, its contents. was there a party the night haleigh went missing? >> that's what this letter is saying, nancy. this letter came from a girl behind bars who is friends with misty, who's a party friend of misty's, who's saying that misty was with her that night -- or this letter's claiming misty, this girl and some other people were together that night and that haleigh was with them partying -- they were all partying and misty got -- excuse me, haleigh got her friends on oxycontin and ingested it and died and that's when this other friend at the party panicked, put haleigh allegedly in a bag, and threw her in a pond. and that's what this letter is saying. >> now, if the letter is true, i am expected to believe that everybody at this so-called party has managed to keep their yaps shut for this long? that is the hard part for me. what about it, art harris at artharris.com? what can you tell me? you've been investigating this theory for weeks. >> well, nancy, investigators told me exclusively that this letter was legitimate. got a copy of it right here. and in fact, they are taking it seriously. they did confirm that they talked to this friend of misty's in jail, confronted her with this sworn affidavit of a witness, and that she is denying it, but she wrote her boyfriend in this letter saying don't you remember, we were together that night, as if she wants to make sure she has an alibi. >> to t.j. hart, program and news director wsky 97.3 fm, t.j., what do you make of this theory? did such a party take place? has that much been confirmed? and this letter is from who to whom? >> i'm not going to mention names. it's from -- >> i don't care about the names. >> but the recipient was indeed her boyfriend. that has been verified. this boyfriend read this to several people over the phone. we had it scan-faxed to us. and that's how we got it. it is legitimate as far as where the letter came from and who it was sent to. now, the party, that has not been confirmed. however, you remember they talked about a pond. well, in that letter they also talked about the black bag being dropped in a pond at the mondex. well, that's exactly where a pond was drained over the weekend. the l pond at the mondex. so there is something to this letter. >> out to the lines, we are taking your calls live. kimberly in washington. hi, kimberly. >> caller: hi, nancy. so nice to finally talk with you. you're my hero, and i watch you every night. >> kimberly, thank you. and thank you for calling in. what is your question, dear? >> caller: you know, i keep on thinking about little junior. he was allegedly there that night. i know early on in the investigation they said possibly he said there was a man there. i was wondering if police are still questioning him. >> let's go to a special guest joining us tonight, the grandmother of haleigh and of junior, teresa neves is with us. she has staunchly supported misty croslin throughout. miss neves, thank you for being with us. what about junior? have police continued to question him? has he been questioned at all by police? >> he has been questioned, miss nancy. he gave them information the night -- or the morning that this happened. and they're not questioning him now. you know? >> yes. i understand. miss neves, at one point i recall that junior, the little brother, had stated that there were other people in the home that evening. what do you recall about his statement? >> junior's initial statement to the law enforcement was that he saw a man in black, i believe, was what they said. >> yes. >> and then it changed, you know. but he didn't change it. other people changed it. >> yes. miss neves, what do you make of this letter? do you put any stock in it? >> nancy, i'm like you. i do not think that that many people, with a $70,000 reward, are going to sit at home and not say anything. i do not believe for one second that my granddaughter would take something like that because of the taste of it. just simply for that fact. ever worn your clothes in the shower? if you're using other moisturizing body washes, you might as well be. you see, their moisturizer sits on top of skin, almost as if you're wearing it. only new dove deep moisture has nutriummoisture, a breakthrough formula with natural moisturizers... that can nourish deep down. it's the most effective natural nourishment ever. new dove deep moisture with nutriummoisture. superior natural nourishment for your skin. okay, sir, let me talk to your wife. let me get some information from her. >> man. [ bleep ]. >> okay. can i talk to her? okay. >> how the [ bleep ] can you let my daughter get stole? >> somebody stole my child out of my bed. i come home from work and my child was not there. >> about 8:00. and i woke up and she was gone. that door was wide open. >> do you believe that misty was indeed home and that she's been telling the truth? >> yeah, i believe she's telling the truth. >> what we need is for misty to come down here and tell us the truth. >> i didn't hear anything at all. i mean, i was really exhausted that day, you know. really exhausted. and when i laid down, i guess i was just out. >> i was told, you know, that she went to bed at 10:00. being that exhausted, i think that maybe you could sleep through somebody beating on the door. >> the officers are going to come out there and do what they can. we can't have him screaming and yelling at the officers whenever they get there. okay? >> uh-huh. >> give me my [ bleep ] phone. i've got better people to talk to than a [ bleep ] that ain't coming. >> straight back out to marlaina schiavo. you have been in the home. what do you think? how far away is that front door from where misty croslin says she was sleeping? could you really not have heard somebody banging on the door if she goes to bed at 10:00 and the brother gets there between 9:30, bangs on the door till 10:00 and then waits for her to get home, no sign of life inside? >> i find it really hard to believe that no one could hear that. the bedroom is in the front of the house. eight, maybe ten feet away from that room. and nancy, remember, this is a trailer. it's not a big place. it's not soundproof. and if he's banging away like the cops say he was, there's no way she couldn't have heard that. >> we are taking your calls live. let's unleash the lawyers. joining me tonight out of new york, family law attorney susan moss. also with us tonight out of atlanta, defense attorney renee rockwell. and also in new york defense attorney, former federal prosecutor doug burns. sue moss, what about it? >> did he really go to the trailer door, or was this just some folklore? i mean, if he was at the trailer door, there's no way she was in that trailer. there's no way she could have slept through this. there's no way the kids could have slept through him banging on the doors. somebody is lying, and that's the key to this case. >> to renee rockwell, i want to get back to this letter. this letter that has been written by a woman who is now incarcerated. what do you make of it? whenever i find out a letter -- hey, art, was this letter written from the jailhouse, art harris? >> sure was. it was written from the jailhouse, nancy, and she asks him to "send me some money." >> okay. didn't ask you that. but thanks for the nugget. renee rockwell, i'm always suspicious since i've gotten so many letters from the jailhouse all over the country. when i was prosecuting, i always wonder if there's an angle. what do they want? what do they want? what's the motive? that's a problem. >> nancy, you can't always talk about and trust a snitch from the jail. but this is not anything that someone from the jail is trying to go to the police with and make a deal with and get a free pass out of jail. this is a letter that has arisen and has emerged and was not necessarily for the eyes of the police. so you've got -- >> that's a good point. >> -- to give a little more trust to a letter like that. >> to doug burns, former prosecutor turned defense attorney. doug, listen. i've used jailhouse rats on the stand before. >> yep. >> if i believe them and if i could corroborate what they had to say. and renee makes a good point. this is not a letter this woman sends trying to get a deal, trying to get a sweetheart deal. this is to her boyfriend asking for some money. this has nothing to do with any ulterior motive. >> exactly right. but the most important point you just made is you can use this as a great source as long as you can krobtd it. the police can go through every little detail and hopefully there will be kernels of information in there that lead to additional roads, and that's where it can be really good. and as you said at the beginning, and you're right, you can use these witnesses but you've got to corroborate them. >> well, sometimes you've got to go to hell to get the witness to put the devil in jashlgs unfortunately. to karyn stark, psychologist joining us in our new york studios, karyn, weigh in. >> it's so suspicious. and if you take a look at the grandmother who's supporting misty, that doesn't make a lot of sense compared to her own mother, who doesn't seem to be supporting her. so there's so much confusion, and it's very hard to piece this apart -- >> but i find it important that teresa neves, who's her paternal grandmother, supports misty croslin. where her own blood mother doesn't. to me that speaks volumes in misty croslin's favor. >> well, i don't know about that. because usually parents stand by their children. i mean, take a look at casey anthony. that mother was swearing by her no matter what. so that's confusing. >> you're right. i just wish they would have took me instead of her. what dhoe want with a little 5-year-old? >> could have been any one of us and our children. any one. nobody knows where there's a psycho or sicko. nobody knows. >> she is scared of the dark. she would not go anywhere by herself. >> i did take a polygraph. i mean, my understanding is that i passed it. >> is there any possibility that she left the home that evening and hasn't told you? >> if there is a possibility of it, i don't know anything about it. >> to mike brooks, former fed with the fbi. mike, you and i have both seen a lot of jailhouse letters. but rockwell makes a good point. this is not asking for a favor, hey, i'll give you information if you'll give me straight probation. >> nope. not asking for that at all, nancy. and just like she said, this was not for the eyes of the police. this was like hey, we were together that night, remember? you know, and hopefully, nancy, this will rattle some of the cages and hopefully, this will rattle the cage that misty's in right now since she took off from home because i think she is still holding the key to where little haleigh is. two flunked polygraphs from law enforcement, one flunked polygraph from tim miller's group. inconsistencies all over the place. she's the one that holds the key to this. i still believe that, nancy. >> to chief medical examiner of broward county, author of "when to call the doctor," dr. joshua perper is with us tonight. and it's an honor to have you on the air with us, dr. perper. dr. perper, what is oxycontin, and how would, for instance, one pill affect a 5-year-old child? let me just say weighing maybe between 30, 35 pounds. >> well, oxycontin is a form of oxycodone, which is long acting, and it's taken primarily against pain, but people also take it for so-called recreational purposes, for basically addiction, getting a high. obviously, it's not given to children at all, and it's not recommended for children. so if, unfortunately, she died as a result of an oxycontin overdose and there are still soft tissue available, then from the examination of the soft tissue it's going to be possible to make a determination that she died as a result of that. >> but from one pill could a child 39 pounds overdose, doctor? >> probably from one or two pills she could have died, and it's possible that children sometimes think that that's candy. and we see sometimes accidental death in those cases. unless somebody gave her intentionally the pill, which i don't think it will be very likely. uuuuuuuuuuuuuuuuuuuuuuuuu i want to get to the bottom of what happened. i don't know if hypnosis is going to do it. they've already tried to hypnotize -- >> are you of the mind that you should try anything? >> absolutely. if that's what we need to, do then that's what we can do. >> i'm trying to do everything to find her, answer any questions i have to, because i know i didn't do anything to that little girl. >> here's the back screen door. the one that was propped open with the cinder block. okay? now, if you see, when it closed, it slams. it makes a loud noise. but if you leave this door, this slowly closes as well. >> i just want everybody to know that i didn't do anything with that little girl. i love her like she's m