The 13 women who could show Bill Cosby had a pattern

PHILADELPHIA -- Did Bill Cosby drug and molest young women as part of a "signature" crime spree spanning five decades? Prosecutors preparing for his sexual-assault trial hope to call 13 of about 60 accusers to show just that.The defense will question their relevance and attack their credibility in high-stakes pretrial hearings that start Tuesday in suburban Philadelphia.The fallen superstar is charged over a single 2004 encounter with Andrea Constand, a former employee at Temple University. Howe