October 31, 2016 11:39 am Could a Pattern Emerge of Alleged Assaults by Bill Cosby? Prosecutors in the Bill Cosby sexual-assault case in suburban Philadelphia will try to prove he went on a “signature” crime spree over a span of decades. US & World Videos 0:47 WATCH: Comet fragment lights up the sky in Portugal 1:58 ICC seeking arrest warrants for Israeli and Hamas leaders 1:43 World reacts to death of Iran's president 1:07 Cargo ship that crashed into Baltimore bridge moving back to port 0:33 Man steals school bus near Tampa, then drives it to Miami: FHP