Who killed the Frog in NCIS? The body opened season 5 — the name waited until episode 14
The last shot of the season 5 premiere is a corpse with a single hole in its forehead, sinking. The show then spent most of a year not answering the obvious question.
René Benoit — La Grenouille, the Frog — was an international arms dealer played by Armand Assante, introduced in season 4 as the target of an off-the-books operation Director Jenny Shepard was running through Tony DiNozzo. Shepard's interest was personal: Benoit killed her father, Colonel Jasper Shepard, and she had been carrying that for twelve years.
How season 5 opened
"Bury Your Dead" aired September 25, 2007. Tony's car explodes while he's tailing Benoit's limo, and the team spends the hour believing he's dead. He isn't — the body is Henri Rousseau, Benoit's driver, matched on height, weight, and blood type until Ducky notices the corpse lacks the pneumonic plague scarring Tony carries.
Benoit turns up at Shepard's home study asking for asylum in exchange for intelligence. She accuses him of murdering her father and pulls a gun on him. It doesn't fire; Gibbs had removed the clip in advance. Benoit walks out. The episode ends on his yacht, empty when the team searches it, and then on Benoit's body floating alongside it.
What "Internal Affairs" actually establishes
Episode 14 aired April 22, 2008, written by Reed Steiner and Jesse Stern, directed by Tony Wharmby. The body has been pulled from the bay and identified. Here is what the hour puts on the record:
- The FBI takes the case — Tobias Fornell arrives to announce the entire unit is under investigation.
- Leon Vance arrives — Rocky Carroll debuts as NCIS Assistant Director and suspends Shepard, who is the Bureau's prime suspect.
- Jeanne names Tony — Benoit's daughter (Scottie Thompson) states she watched Tony shoot her father at the marina.
- Shepard breaks the statement — under questioning, Jeanne admits she never reached the marina. She drove around instead, unable to face her father.
- Kort closes it — the CIA's Trent Kort produces classified paperwork saying Benoit wanted to retire and has been retired. The investigation ends there.
That is the official answer: a CIA euphemism on a document nobody outside the room gets to read.
The answer the episode actually gives
The closing flashback goes back to the study and the marina, and it points at Shepard. Gibbs works it out and does precisely nothing with it.
"Long live the queen," Gibbs tells her — the last word anyone offers on the subject.
The episode never stages the shot, and Kort's paperwork stands as the file version, which is why the question still gets asked. The show's own framing treats Shepard as the shooter and Gibbs as the man who chose not to say so.
Jeanne Benoit's last appearance for eight years is the scene where her eyewitness account falls apart.
Why the gap was so long
Season 5 ran 19 episodes and is the only NCIS season with no installment airing before Christmas. The Writers Guild strike shut production down after the November 20, 2007 episode, and the show did not return until April 8, 2008. Episode 14 landed nearly seven months after the body first hit the water.

Shepard herself died six weeks later, in the May 20, 2008 two-parter "Judgment Day." Jeanne came back once, in season 13.
Previously we wrote: What year is NCIS: Origins set in?