NCIS Season 4 Episode 21

When CSI director Jenny Shepard, such a bitch that everybody draws straws who has to go talk to her, personally meets with Trent Kort, a CIA informant on arms-dealer La Grenouille's activities, he is shot right there. Senior FBI Agent T.C. Fornell is assigned to liaison with Langley. Gibbs and his team still try hard to help her. Ducky finds Jenny irrationally obsessed with La Grenouille, and she shoots star-witness Elroy Webster. They follow a tip the only hit-man La Grenouille would have used is Andre Jones. Tony sweats more meeting his girl-friend Jeanne Benoit's divorced mother, Dr. Helen Berkley.