murders investigation, prosecutors now revealing a cheek swab taken from suspect bryan kohberger is a statistical match to dna found at the crime scene. he is charged with stabbing and murdering four university of idaho students last year. the key piece of evidence, a knife sheathe next to the bodies of kaylee goncalves and madison mogen. investigators compared that to familial dna. after taking a swab from kohberger himself, prosecutors now say the two dna profiles are a match. after a comparison of the dna profile of kohberger and the knife sheathe dna. prosecutor prosecutors writing the same profile is 5.37 octillion times more likely to be seen than if the defendant is the source than an unrelated individual. police department, search warrant, come to the door. reporter: the night kohberger was arrested at his parents
The FBI’s creation of a DNA profile with a publicly available ancestry service first led to the alleged killer, a former Washington State University graduate student of criminology, the records showed.
it was a chilling thing for a community. people were rightfully scared to death. parents started pulling their daughters out at the university of nevada reno. those who stayed were on high alert. owners of gun specialist or saw a spike in their business, selling weapons, pepper spray and even tasers. police knew that the unit would be the key to breaking the case. the county crime lab tested 4000 criminal dna samples that had been sitting on the shelf, but there is no match. no match in any national database either. detectives looked hard at the hundreds of registered sex offenders in the area. and we began doing face to face interviews with any individual who did not already have a dna profile in the system. investigators gathered 700 new dna samples from monday questioned and other staff
to try to sexual assault here and rape her. she had gloves on, took her gloves and poked him through his eye, and he ran away. all of them had sexual assault rape kits done at the hospital, every single one of them, and three of them came with the same unknown male dna profile, but they didn t know who it was. the first one was inconclusive at the time. last year is when they started doing further testing and that further testing found it was consistent with matthew nilo, a new jersey man who is an attorney, has been an attorney in a firm in new york city. a fascinating development the way that they were able to locate him. jean, thank you so much for that. let s bring in cnn s security correspondent josh campbell. prosecutors, josh, say that authorities put nilo under surveillance going back to last year, so walk us through that process of collecting dna to be
and 2008 in the charlestown area of boston in a series of incidents that shocked the city. 15 years after the trail ran cold, authorities revisited the investigation, using forensic investigative genealogy they determined nelo, who went to school in boston at the time, was a person of interest, fbi agents placing him under surveillance. fbi agents were able to obtain various utensils and drinking glasses they watched the defendant use at a corporate event from one of the glasses the boston police crime lab was able to obtain a male dna profile found to match the suspect profile. he was arrested last week at his home in new jersey. anything you want to say about your fiance? his fiance, with him when he was arrested, ignoring questions from the press outside the courtroom. and david, authorities say that he s lived in several states. this investigation is ongoing. they say if you believe you may be a victim to contact the