: Distraught that her own forensic science is being used to convict her friend, Abby makes it her personal mission to find the true culprit. She works feverishly in her lab, eventually uncovering the forensic "slip-up" that reveals the frame-job.
Due to the conflict of interest and the severity of the evidence, Director Jenny Shepard turns the case over to the FBI, with Agent leading the investigation. Key Character Moments [S3E9] Frame-Up
: Ziva and McGee compile a "Long List" of people with grudges against Tony, ranging from criminals he arrested to ex-girlfriends like Lt. Pam Kim , who previously put his name on a "herpes alert" website. : Distraught that her own forensic science is
: The true killer is revealed to be Abby's lab assistant, Charles "Chip" Sterling . He framed Tony as revenge for Tony previously getting him fired from a medical analysis firm. The episode reaches a climax when Chip attacks Abby in her lab with a knife, but she manages to overpower and subdue him before the team arrives. Notable Production Facts Key Character Moments : Ziva and McGee compile
: The episode was directed by Thomas J. Wright and written by Laurence Walsh. "NCIS" Frame Up (TV Episode 2005) - IMDb