Mamoun Sharif was a terrorist.
Prior the series, Sharif lived in Lebanon. He had a wife and daughter, both of whom were killed when an American smart bomb misfired. This led him to seek revenge on the United States military. He acted as a CIA informant, while plotting attacks on various targets in the United States.
NCIS Season 4Edit
Sharif first appeared in "Sandblast", when he was contacted by NCIS and Army CID, who were investigating a bombing at the Army-Navy Club. Sharif was working for the CIA, and offered a false lead on a terrorist plot. He then burned down his own store and faked his death, planning to detonate an explosive using a mentally-ill homeless man as a delivery method. This was thwarted by the agencies and the homeless man, Abraham, identified Sharif as the mastermind of the plot. He went underground, pursued by the CID.
He resurfaced in "Sharif Returns", acquiring a chemical weapon to use in a mass terrorist attack. The weapon, BZ Gas, caused psychosis in humans. Using a large cache of money, he planned to commit a mass poisoning. He also personally tried to kill Gibbs with the same chemical poison. However the plot was discovered, once again by the CID and NCIS, and Sharif met his end at the hands of Lt. Colonel Hollis Mann in defense of Gibbs.
- Colonel Fredrick Cooper (killed in sand-trap bombing at the Army-Navy club).
- Unknown proxy (trapped in burning store then blown up).
- Major John Maguire (poisoned with BZ gas).