I fell asleep during a movie and would like to finish it. It is about a man ( with a false id that kills a co worker, steals a necklace from the museum he works at, fakes his death?) his wife and little girl find out he wasn't who he said he was after he dies. Possibly from the 80's or 90's.

Could be Deceived (http://www.imdb.com/title/tt0101694/) from 1991 with Goldie Hawn.