Ellen Wright Clayton, a specialist in law and genetics at Vanderbilt University, says there aren't many possibilities. "The only thing they can be looking for here is to see whether the killer had certain genetic variants that may predispose to mental illness or to violence," she says.
Scientists have spent decades studying these genetic variants. But can a person's genes reveal why they commit mass murder?
"Absolutely not," Clayton says. "Genetic variants do not explain criminal behavior."
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Posted December 22, 2012 at 11:35 am
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