Deliverance - S6-E15
Factual error: It is constantly mentioned that the number found at the crime scene is Gibbs' military service number. The Marine Corps stopped using service numbers on Jan. 1, 1972 and since has only used Social Security numbers for identification.
Answer: I hadn't seen the backdoor pilots yet but while it wasn't explicitly stated, at least onscreen, I heard somewhere Vivian got either fired from NCIS due to jeopardizing a case, got resigned from the agency, or transferred to the FBI.
Raykvega423