SLU Forensic Expert Discusses JonBenét Ramsey and O.J. Simpson Cases

Erik Hall Ph.D., Adjunct Professor of Forensic Science in the Department of Sociology and Anthropology, discusses how crime scene contamination may have impacted the JonBenét Ramsey and the O.J. Simpson cases and how forensic technology has evolved over time to help bring resolve to unsolved cases.
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[@zzzthaoster]

John Ramsey was like, hey neighbors, all guys come over to our house right now before the foreignsic team gets here. Bring as many people as you can to contaminate the god damn crime scene. Hurry!

[@billa1870]

The Ramsey home became a crime scene the very moment it was presumed - true or not - a kidnapping

[@xs6819]

Really we know this I thought he had new developments

[@liquidmetal9647]

Lots and lots of people? Wasn't it 5 people. They seemed to call 911, a minister, a family friend who was an attorney (+ his wife), and a close friend/neighbor (husband + wife) who had connections to the FBI (that they asked to contact the FBI). They seemed to call people that could potentially help in various aspects. If I had those sort of connections, I probably would've called em all too. It would've been on law enforcement to say, no this is a crime scene, do that sort of networking outside.

[@Jackie371]

The DNA for JonBenet's murder is confusing. About a week before, the Ramsey's let a home tour go through their house, so all that DNA could have been spread throughout the home by the family. One of the detectives said that the DNA under her fingernails could have been from normal childhood playing. The underwear--the DNA in the stain cannot be from a factory because it's in a stain. That pair of underwear was up on a shelf in the closet for her to wear when she got older & they fit, so could a sicko, like a repairman, have put that DNA on the underwear sometime before & then some of it was transferred to other parts of her pajamas the night she died, like by a parent changing her underwear?