03/18/2013 09:04 pm ET Updated May 18, 2013

Manssor Arbabsiar Sentencing Delayed In 'Amateur Hour' Iran Assassination Plot

WASHINGTON -- The sentencing of Manssor Arbabsiar, the Texas car dealer behind an "amateur hour" plot to hire a Mexican drug cartel hitman to kill the Saudi Arabian ambassador to the U.S., has once again been delayed.

Arbabsiar, who reportedly has bipolar disorder, was scheduled to be sentenced on March 26. U.S. District Judge John F. Keenan ordered late last week for that sentencing to be rescheduled for April 30 at the request of Arbabsiar's legal team. He faces up to 25 years in prison.

Arbabsiar pleaded guilty in October, admitting he agreed to hire who he thought was a drug dealer to carry out an attack at a Washington restaurant for $1.5 million. The U.S. government alleged the plot involved military officials in Iran.