Page 6 - Dylan Spellman News Today : Breaking News, Live Updates & Top Stories | Vimarsana

For chris mel mucher having him arrested. for the confidential details in the letter -- >> this is small town texas. there's any number of places that information could have come from. >> what about the lab report showing the gun matching the shell casings found at the scene? >> we had our expert who said it's inconclusive. there's no way you could say for sure. >> police, they said, should never have taken their sights off the real shooter. >> they had the right guy. >> dylan spellman. you think that's the killer? >> he's a better match than my boy. >> he had failed a polygraph exam and start...

>> we start trying to get background on dylan spellman. >> some quick computer searches revealed spellman had a criminal past. >> dylan spellman had just been convicted of a violent crime. >> yes. >> an armed robbery in nevada. >> yeah. >> that nevada armed robbery occurred in 2010, a year and a half before the shootings. spellman and some accomplices broke into a home in a las vegas suburb and held a family hostage before robbing them and taking off. >> anybody get killed? >> no. >> and at the time of the shootings in 2012, dylan spellman was in the corpus christi area awaiting sentencing for...

We have no usable prints. the only thing we have are cigarette butts, a monster can, and suspicion. >> it didn't help that chavez's one eyewitness to the shootings could not identify spellman from a photo lineup. >> it was very hard because the suspects all looked the same. >> and then there was the matter of mr. spellman's height. >> he's big. >> he's what, 6'8"? >> 6'8". >> remember, kristene said the shooter was quite a bit shorter than that, 5'8", maybe 5'9". >> for me, it was always the difficulty of getting over the size. >> so chavez and his team regrouped. >> we begin getting cell phon...

While detective aaron veuleman continued trying to strengthen his case against dylan spellman, investigators in neighboring sinton, texas, received a mysterious letter addressed to kristene chapa's dad. >> immediately i knew this was something very, very big and very important. >> the letter-writer described himself as a hit man hired by the person who shot mollie and kristene. he wrote, the gunman had sought his services to finish the job and make the only witness to mollie's murder disappear. >> what he's saying is, i was hired to kill kristene, but i'm not going to do it. instead, i'm warni...

Hired him. if you're wondering, the letter does not mention dylan spellman. all of it was a twist as big as texas. texas. coming up -- the mysterious letter. could this be the smoking gun police had been looking for? >> immediately, i knew this was something very big and very important. >> when "dateline" continues. >> when "dateline" continues