Pach and an accomplice, Young, were sent by Saunders to a building in Los Angeles where MI6 had an office. They planted a bomb in the computer room where data on Saunders was kept, while a helicopter strafed the office floor with machine gun fire. Among those killed by the chopper were British agent Trevor Tomlinson and suspect Diana White. Pach was shot and killed by Jack Bauer with Chase Edmunds, and Jack retrieved the data that the bomb was meant to destroy. Their deaths were confirmed to Saunders by his coordinator Osterlind.