Jacob Rossler

Jacob Rossler a software programmer who was called in by Russian terrorists to assist in the release of VX Nerve Gas during Day 5. He was hired to give the terrorist Ivan Erwich new trigger codes and install the chip.

He was indicted for high security code infiltration, identity theft but was never convicted.

CTU was able to trace Rossler's phone call to Erwich and send Jack Bauer and Curtis Manning to the location. Once inside, Bauer discovered that Rossler has a Russian sex slave, Inessa Kovalevsky with him.

Bauer and Manning try and get Rossler to talk, and he wants to make a deal. Jack says he just wants information, but Lynn McGill instructs him to accept the deal. The deal is he gets immunity, is able to leave the country and gets to take Inessa with him. When Bauer discovers that Inessa is 15, he doesn't want that part of the deal to go through.

He is shot by Inessa, because she wanted revenge and didn't want to be left alone with Rossler.