Chriine News Today

>> welcome back, good morning. christine romans joins us with a look at whats ahead on "starting point." >> today weve got a startling discovery in the boston marathon attack investigation. female dna found on part of a bomb fragment. now investigators looking more closely at the deceased suspects wife. then, an american athlete makes history. coming out as gay while still active in one of the major sports leagues. has nba player jason collins knocked down the barrier for closeted professional...