Tech 3

Tech 3 was a large, secure server room inside of Los Angeles CTU. The entrance was barred, and there were server systems running along the back wall.

Day 1
After her cover had been blown, Nina Myers ran to Tech 3 and opened up a secret vault in the wall that had a laptop computer in. She began to erase files that would indicate her whereabouts when Teri Bauer walked in. Nina tied Teri up and shot her, and several moments later Jack found her, and wept over her body.

Day 3
Jack shot Nina in the same place that Nina killed Teri several years before.