A used plane ticket found by Breaking Celebrity News could rock the Bruce Beresford-Redman murder case, possibly proving that not only is the former Survivor producer still linked to his mistress, but also giving authorities an opening to argue that he should be denied bail.

Joy Pierce has been living in a modest home Bruce owns in Gardena, California, even though their affair was thought to have ended last year.

Breaking Celebrity News EXCLUSIVE: See Mistress' Plane Ticket

Breaking Celebrity News has uncovered what law enforcement believe could be a crucial piece as Bruce fights extradition to Mexico where he is charged in the murder of his wife Monica Beresford-Redman.

The American Airlines ticket, from Miami to Los Angeles, is dated November 4 and is in Pierce’s name.

Read The Complaint Against Bruce -- Filled With New Details Of Wife's Murder

Breaking Celebrity News’s stunning revelation is set to provide a dramatic backdrop to Bruce’s court hearing in Los Angeles on Wednesday in which he is expected to fight extradition to Mexico.

“This is key piece of evidence that could point to a bail denial argument,” a law enforcement sour