or she was pregnant to old Rick. .. first time Rick finds out he has competition, even though its a forced situation like his is against Tia. Maybe the first time Julene finds out that Rick has been assaulting Tia. Maybe he kills Tia to keep in the good books of Julene.. this whole situation has so many pieces to the puzzle. and it's a sure bet that Rick or the son, either son, both of them or Julene are going to come clean anytime soon.