battery and bits and pieces of what looks to be a circuit board. reuters saying the government official who did not want to be identified shared these photos along with these images of a mangled pressure cooker. as we look at the different photos, one appears to be a cluster, you see tiny bbs likely fused together and shot out after the heat of this blast. the fbi saying the second bomb was also in some sort of metal container. >> all those doctors saying they were finding the bbs and nails in the patients they were treating. and word that boston area hospitals released at least 100 of the 183 people injured in monday's attack. we're learning more about the third person killed, identified as a chinese grad student studying at boston university. we are respecting her family's wishes. we are not releasing her name at this time. we're following every new