Unsure if this is the appropriate place to ask, but being stuck on this particular level I was hoping that one of you veteran gamers could help me out here.

For anyone who's completed the game; I'm currently stuck on Mission 7 "You Lucky Bastard". Chasing Segio through the harbour, had epic gun fight with oppostion gangsters. After killing every gangster in the enclosed harbour Sergio Morello is nowhere to be found, absolutely no place. This level particularly puzzelled me, the gunfight was hard enough, now my target just dissappeared from the face of earth. What the heck?!

Started to play this game on recommendation of friends and found it extremely interesting. I was awed by the amount of detail and quite frankly astonished that this game was made way back in 2002. Very complexed and chanllenging, also has a nice storyline. I would appreciate it greatly if someone could help me out here so I could finish the game.