CENTRAL ISLIP - Opening arguments got under way today in the trial of a suspect charged in the 2009 killing of a young man in Brentwood.

Deighton Reed, of Central Islip, is accused of gunning down 21-year-old Valentino Sanchez in his home on Pheasant Circle Dec. 30, 2009.

A source who allegedly knew the victim told News 12 Long Island that he was a gang member, but police have not commented on that.