Doppelgänger
Season 2
"Jurisdiction" - CGIS (Coast Guard Investigative Services)
That would be Doppelganger, one of my favorites - Season 2, Episode 12
5x01 Bury Your Dead.
He dies in a later episode, when the Team is trying to Rescue Him.
Timothy McGee's real name is Sean Murray. His first episode in NCIS was in episode "Sub Rosa" in NCIS Season 1. He made intermittent appearances in Season 1. He became a full time member of the team beginning from Season 2. He is the computer geek and expert in Gibbs team.
The Episode is titled "Twilight". It was the last episode of NCIS Season 2. In that episode, NCIS Special Agent Caitlyn Todd "Kate" was killed by the Hamas Terrorist Ari Haswari. This was the last episode for the Agent Kate character played by Sasha Alexander. Gibbs and team get their revenge when Ari is killed in the Season 3 Opening episodes.
Truth or Consequences is the first episode of NCIS Season 7. The team (Gibbs, Tony & McGee) go to Africa to rescue Ziva who gets captured by a terrorist. The next episode is Reunion where the team investigates the death of 3 people who were part of a bachelor party. During this episode Ziva and Tony try to settle their differences and trust issues.
Sean Murray's character has always been an official NCIS agent. The first episode he is in is Season 1 Episode 7 - Sub Rosa. He becomes a regular member of Gibbs' team later on that same season starting with episode 18 - UnSEALed.
by tracking the lawyer and/or the novelist
Ducky works for NCIS. He does work with all of the bodys that NCIS has to do with BUT he is assigned to agent Gibbs team on NCIS
A Marine famous for pulling his original pranks is found murdered on the night of Halloween and the NCIS team uncovers that the victim's pranks may have become a ghoulish retribution.Meanwhile, Ziva is given a new role on the team.
i think its SWAK, when Gibbs and his team gets y pestis (pneumonia) from an envelope, and dinozzo contracts pneumonia.