December 21, 2010 11:18 pm Kensington Strangler Now a Serial Murderer DNA evidence has linked the murder of three women in Kensington, making the so-called Kensington Strangler officially a serial killer. And women in the area are on alert. US & World Videos 21:51 NBC10 @Issue: Reclassifying marijuana 0:35 Fans of ‘The Office' got to see some of the stars at Fan Expo Philadelphia on Saturday 2:32 Rainy, chilly weather didn't stop many from enjoying festivals throughout Philadelphia 0:29 Driver found safe after carjacking in Delaware 2:23 Teen killed in quadruple shooting in North Philadelphia on Saturday evening