. >> it was an anonymous tip that brought the police to northerly street. 58-year-old william karra carrao was not there. he worked at a pizza house never missing a day until now. the stunned co-workers told them in january that his disabled mother died in her sleep. >> he came in and kind of mentioned it. i left it at that. i don't like to bother him about his personal life. carrasquillo's boss does not condon his actions. >> i think that he saw a situation that he took advantage of. >>reporter:and as the police search for him the medical examiner is trying to figure out if the mother died of natural causes or something else. kenneth moton. >>> thank you, kenneth. the police need your help finding 3 33 nefertiri trader. it is a silver 2,000 acura rl, 404-983. he group concerned when he could in the get in touch with her yesterday. her 17-year-old son heard something strange. >> he's the one that actually heard a commotion. but he came downstairs to check on her or see if anybody was in the house. no one was in the house. >> both of nefertiri's two children were home at the time of this po