Suffolk County District Attorney Daniel Conley, left, faces reporters as Boston Police Commissioner Ed Davis, right, looks on during a news conference at Boston Police headquarters, in Boston, ... more 
Suffolk County District Attorney Daniel Conley, left, faces reporters as Boston Police Commissioner Ed Davis, right, looks on during a news conference at Boston Police headquarters, in Boston, Thursday, July 11, 2013. Investigators helped by advances in DNA technology finally have forensic evidence linking longtime suspect Al0bert DeSalvo to homicide victim Mary Sullivan, the last of the 1960s slayings attributed to the Boston Strangler. (AP Photo/Steven Senne) less 
1 / 24
Associated Press | Photo By Steven Senne
Thu, Jul 11, 2013 5:44 PM EDT