Salinas

Salinas was Kirk Michaelson's boss in the FBI. She killed herself.

Dropping the Case
After the attack on Myers' Steakhouse Salinas drops the case but this annoys Kirk Michaelson so much he quits the FBI.

Suicide
Kirk Michaelson learns that Salinas committed suicide and that so his new boss is Eisner, who asks him to come back in the FBI but Michaelson refuses and decides to enter the CIA.