Police believe woman acting in self-defense might have killed cross-country serial killer

Police in West Virginia say a woman who shot a man after he attacked her likely killed a serial killer. Man slain in West Virginia may have been a serial killer, police say: ://t.co/DrvtvJbnRj pic.twitter.com/L1T2jF2Nb1 -- NBC10 Philadelphia (@NBCPhiladelphia) July 27, 2015 The man, 45-year-old Neal Falls, found an online ad for an escort who asked that CBS News call her "Heather." Heather told CBS News that she answered the door and saw Falls holding a gun. He asked her if she wanted to "live o...