direction in life. >> then investigators learned about a confrontation between alan johnson and bruno santos a few days before the murders. sarah told her parents she was sleeping overnight at a girlfriend's house, but they later learned she was spending the night with santos. alan johnson was furious, and he asked his brother-in-law, jim vavold, to go with him to santos' home. >> i said it's not worth getting into trouble going in there, beating up the kid or anything like that. you're not going to accomplish anything. >> alan told santos to stay away from his daughter and took sarah home. >> diane and i were in the kitchen and i asked her, did they love each other? and she said, well, she says that they do. and i said, well, if they think they love each other, you won't be able to keep them away from each other. >> the johnsons also told santos that if he didn't stay away from their daughter, they would file statutory rape charges against him. >> any kind of an arrest whatsoever would have sent bruno back to mexico. that just gave him that much more motive to take care of diane and alan. >