Page 313 - Dna Testing News Today

>> during his interrogation, the detective offered him a can of soda. >> we got through with the interview and chad had not finished the mountain dew. >> i had an empty trash can liner and i said dont spill it. it will get all over there and leak out. >> investigators knew they had to drain the soda by making a hole in the bottom of the can. >> thats probably the best thing to do is go ahead and drain the can so theres no chance that anything that spills out of that can could possibly affect tha...

Contacted police about his former roommate, bob johnson. >> someone who came forward and claimed that their roommate at that time in 86, johnson, had come home bloodied and said that he had killed somebody. >> johnsons mugshot looked remarkably like the composite drawing of the suspect. he didnt fit the fbi profile, but his background made him a likely suspect. >> his ex-wife told the investigators that mr. johnson had a significant drug problem, and he was conducting those burglaries to help su...

Glove in the back pocket, a pair of white socks. they also found some information from ken maclennan to include his wallet, some business cards from his employer and some foreign currency. >> the clothes were jason maclennans. students had seen him wearing them the day of the murder. dna testing proved the blood on the clothes had come from jasons father. >> the fact that we could prove beyond a reasonable doubt that those jeans were jason maclennans with his dads blood on the bottom of the pant...

Visited a website on how to beat a polygraph and had, in fact, paid money to download a book on how to beat it. >> as testing continued on the blood stains on the floor of the crime scene, investigators noticed one blood drop on darrell norths pants that they had previously overlooked. >> there was a vertical drop on the back left pant leg of darrell north, while hes laying on the floor. >> the shape of the drop was perfectly round, meaning that the origin of the blood was stationary, and hit th...

Two days later, she was gone and pat was dead. >> she stripped sunday night, danced sunday night at the outer limits and then she and her boyfriend leave town. >> police issued an all points bulletin for laura england. in the meantime, at the crime scene, investigators made some important discoveries. first, there were bloody boot prints throughout the house and they had been made at two different times and several hours apart. >> you could see that someone had exited the house and then, apparen...

So, the next step was to compare the spent shell casings from the scene to the casings from the test firing, looking at unique marks made by the firing pin as it struck the bullet. they were identical. also inside the barrel was a small drop of blood. dna testing proved the blood was ken maclennans. >> it made sense based on the soot on the hand that mr. maclennan had actually grabbed the gun before the shot was fired. because of that contact with the hand, some of his blood then did blow back i...

Dna testing on blood found near those fibers confirmed it was rachels blood and that she was bleeding before she hit the ground. >> so, the police had to work backwards. they had to find out, you know, how did that blood and how did that fiber get on the pennsylvania turnpike bridge rail? >> there were no marks on rachels neck, so investigators didnt believe a ligature or even the killers hands were used to strangle her. >> if its a large surface, like a forearm, pressing against a neck or a lar...

Unsuccessful. >> she had dental records but they were ten years old. i couldnt find a dentist that kept their records that long. >> and initially scientists couldnt use dna testing either. >> they couldnt pull the dna from the remains from the bones. apparently the bones were too dried out. >> investigators were facing the very real possibility that their victim would never be identified. then forensic anthropologist dr. midori albert had an idea. >> id been familiar with a procedure called skul...

I spoke to the doctor that did the operation on her, and he advised me i could go to the place that stored this biopsy, and i was able to get it. >> incredibly, dna testing of that biopsy sample matched the dna profile from the victims tooth. >> when the dna came back and confirmed that my victim was scarlett wood, and that john boyer was the last person to be seen with her, we ended up going to augusta, georgia, and interviewing john boyer. >> at first, boyer repeated what he told investigators...

He found hundreds of tiny specs of blood, high-velocity blood spatter, the type that would be created by a high-powered rifle. dna testing showed the blood came from both diane and alan johnson. this proved the killer wore the robe backwards, but investigators needed to prove that sarah wore the robe on the morning of the murders. to do that, they had to analyze the shirt she had on that day. >> sarah johnson had a blue cotton t-shirt with green paint smeared on to it. so, therefore, im thinking...