UK Daily Mail 
Dec 28, 2012
Scientists have been asked to study the DNA of Newtown school killer Adam Lanza to see if has an ‘evil’ gene that led him to carry out the massacre.
The study, which will look at any abnormalities or mutations in his individual DNA, is believed to be the first of its kind ever carried out on a mass murderer.
Lanza slaughtered 20 children and six adults in one of America’s worst ever school shootings on December 14, 2012.
The 20 year old also shot dead his mother Nancy before taking his own life as police closed in on him at the Sandy Hook elementary school in Connecticut.
The massacre prompted President Obama to look into new gun controls and banning assault rifles such as AR-15 Bushmaster used by Lanza in his rampage.