Male navy officer smoke occasionally dating Sexchating with strangers
He later traveled to Mexico and murdered the drug dealer responsible, a crime he kept concealed for twenty years.
Since then, he has been married and divorced three times, and is single, although he has had a number of romantic relationships since his last divorce.
He is reassigned as an Agent Afloat in the season five finale "Judgment Day", and transferred back to the Major Case Response Team in the episode "Agent Afloat".
In the season nine finale, "Till Death Do Us Part", a bomb blast at NCIS headquarters occurs with Tony and Ziva in the elevator.
Both are rescued from the elevator and survive their ordeal.