I dunno who killed him, but I was really psyched that I got to kill Luca's killer while playing the game on PS2
Is that the guy we had to throw in the furnace at the funeral parlor? That was a tough one, you first had to get into the funeral parlor to get to the elevator to go the basement, where he was waiting for you with two body guards, and the only way you could whack him was by throwing him in the furnace. Almost as hard as taking over the compounds.