Jury chosen in John Stamos extortion trial

MARQUETTE, Mich. Testimony is expected to begin later Monday in federal court in Marquette, Mich. The trial is expected to last two or three days.

Allison Coss and Scott Sippola are accused of trying to squeeze $680,000 out of the "Full House" and "ER" star.

Federal prosecutors say the photos don't exist but the couple claims the photos were lost or destroyed during an FBI raid.

Defense attorneys say the couple offered Stamos a chance to buy the pictures but that it wasn't extortion.