As far as the actress leaving, I have no idea, but director Shepard left NCIS because she was killed by thugs that were hired by the girlfriend and enemy agent of the guy (Also and enemy agent) that Gibbs killed back when he and Jenny worked together as agents (Jenny was supposed to kill the girl, so I guess it could be argued that she caused her own death) Jenny knows that this lady is out for revenge when another agent who was somehow involved is killed, and leaving his funeral, sees she's being watched, and goes to investigate, and ends up being killed, and Gibbs, with the help of his former boss, ends up killing the girlfriend when she tries to kill him. They shouldn't have done this, because noone likes the new director because he's all mean and secretive, and gets mad that Gibbs doesn't trust him when he has done nothing proving him trustworthy...Jenny was flawed, but she was better.
She was fatally wounded by one of four hitmen, on the second last episode of NCIS season 5.
NO
He dies in a later episode, when the Team is trying to Rescue Him.
As of 2015, he is still alive on the show.
Answer for SEASON 5 (2008)Director Jenny Shepherd is murderedAlso Jenny and Gibbs's friend who they went to France with was murderedAnswer for SEASON 6 (2009)Michael Rivkin, Ziva's boyfriend, was killed by Tony in the episodes leading up to the season finale
She was fatally wounded by one of four hitmen, on the second last episode of NCIS season 5.
Michael Rivkin
NO
He dies in a later episode, when the Team is trying to Rescue Him.
As of 2015, he is still alive on the show.
Answer for SEASON 5 (2008)Director Jenny Shepherd is murderedAlso Jenny and Gibbs's friend who they went to France with was murderedAnswer for SEASON 6 (2009)Michael Rivkin, Ziva's boyfriend, was killed by Tony in the episodes leading up to the season finale
The end of season 5 in a two part episode named "Judgment Day"
No, Director Vance did not die. Michael Rivkin, Ziva's boyfriend, was killed by Tony though
Micheal
Donald Shepherd died in 1998.
Sydney Shepherd died in 1987.
Anthony Shepherd died in 1796.