arthel: want to warn you at this next story is very disturbing to police in los angeles are asking witnesses to come forward after an elderly woman was brutally beaten and left unconscious. then robbed by a passerby. surveillance video from a city bus shows the 86-year-old woman knocked out cold on a sidewalk. a man gets off the bus, stepped over her then starts rummaging through her purse. a couple of bystanders tried to intervene but the man takes her wallet and walks away. police say the assault suspect is in custody. they re still looking for that thief. so far in idaho judge ruling against no delay in idaho college murder suspect trial no ruling on the defense request for more info on the dna evidence prosecutors say ties brian into the murder scene. senior correspondent steve