it was attempting to deliver humanitarian aid to people in that earthquake ravaged country. officials say there s no evidence of what happened. radio transmissions indicated the crew was having a fuel problem before it went missing. a massacre in pakistan today. gunmen on motorcycles opened fire on a bus in karachi killing 43 people, wounding 19 others. most of the victims were shot in the head. a violent extremisist group tha targets the shiite muslim minority claimed responsibility for this horrific attack. new details on the deadly amtrak train crash in philadelphia. rescue teams on the scene right now. what are they finding as they pick through the wreckage and what new technology are they using to secure that scene? also, there are passengers unaccounted for in this accident including this ceo. she s the mother of a 2-year-old child. we ll have details on the search for this woman next.