A short cutscene is shown which depicts Sam and Eddie saying goodbye to each other. When you take control of Sam, just go straight until you get to the end. A short cutscene with two guys finding the backpack with the laptop is shown. Go around the corner and you should see them. Do not let them see you. Just follow them and stay several yards behind them at all times. When you get to the skybridge area and the turnstiles are blocking you, just go to where there is a glass barrier and press triangle. Sam will jump over the barrier. Once you get over the skybridge, the two guys will turn right and talk. They won't move, so you have to find a different way. Go all the way around the area until you see two other guys facing in the other direction. There will be a room to the right behind them