David Rupert

David Rupert is a former FBI/British intelligence agent whose testimony led to the arrest and prosecution of Michael McKevitt, the reputed leader of the Real IRA, for the Omagh Bombing which resulted in the killing of 29 people and maiming of 220 others.

According to The Guardian "[i]t has emerged that when, in November 2000, it was first suggested to Rupert that he testify against McKevitt, the American informer balked at the idea ... [i]t is understood that he changed his mind after seeing a news report on the Omagh bombing. [s]ince agreeing to testify against McKevitt, Rupert has come under pressure to give evidence against other Real IRA and Continuity IRA figures, including Colm Murphy, the only man convicted of offences relating to the Omagh bomb attack."

David Rupert is reportedly in a witness protection program somewhere in the United States.