Alan Tanner

Alan Tanner was a terrorist working with Tony Almeida.

Day 7
When Tony learned that Jack Bauer was using one of his contacts, Gabriel Schecter, to find him, he had Alan kill Gabriel and his bodyguard from the rooftop of the Columbia Building.

Jack and FBI Agent Renee Walker tailed Tanner to a ship and back to Tony. Jack used Tanner as a shield to get aboard the ship and one of terrorists on the boat shot Tanner several times. Jack pushed Tanner off the gangplank and Tanner landed on the crates. He was last seen still alive but seriously wounded.