I'm with you on that. I don't think Trinity would have bumped into Lundy if he intended to kill him. Trinity was playing a game with Lundy and shooting him from across the parking lot isn't very "sportsmanlike". I don't think it was the "Vacation Murderer" either. It could be Anton, but I don't see Quinn being involved, although I do see an exciting future for Quinn, sort of like with Doakes.