got breaking news tonight. late word that parts of one of the boston pressure cooker bombs had female dna on it. fbi agents today searching his widow's home, emerging with a bag labeled dna samples. meanti meantime, authorities now say they know what killed the older suspect, tamerlan tsarnaev. however, they're not yet making it public. his body, meantime, goes unclaimed by either his widow or his family. they say they'll make the results of what killed him public once his body has been claimed. they say that's the procedure. also, more sharp reaction today to news that russian authorities two years ago intercepted a call from one of the brothers back to their mother in dagestan, a vague conversation apparently about jihad. the younger suspect, now in a ten by ten foot cell outside boston, has a new lawyer on his defense team specializing in death penalty cases. her name is judy clark. she once defended jared loughner, the tucson shooter. joe johns joins me tonight along