A former Danville middle school teacher pleaded guilty Wednesday in federal court to possession of child pornography, according to the U.S. Attorney's Office.
Mitchell Wolf, 59, admitted to knowingly possessing approximately 50,000 digital files depicting minors engaged in sexually explicit content, prosecutors said.
Wolf was employed as a math teacher at Diablo Vista Middle School when he was arrested last August by local authorities following a search of his home on Bourne Lane in Danville.
Wolf, who had taught at Diablo Vista since 2002, was placed on unpaid administrative leave in the wake of his arrest. He retired from the school district effective June 12, according to district spokeswoman Elizabeth Graswich.
The Contra Costa County District Attorney's Office charged Wolf with aggravated child pornography possession last August, and the U.S. Attorney's Office filed a federal charge of child pornography possession against Wolf on April 3.
As part of pleading guilty to that federal count in Oakland on Wednesday, Wolf admitted to intentionally saving the illicit image and video files to his personal computer and onto CDs and DVDs -- some of which he reportedly hand-labeled with acronyms and terminology consistent with child pornography.
He also admitted to downloading the digital files from the Internet using a peer-to-peer file-sharing program, prosecutors said.
Wolf is currently out of custody on $250,000 bail and has a sentencing hearing scheduled for Oct. 21. He faces up to 10 years in prison, a fine of $250,000, a lifetime term of supervised release, and must pay restitution.
The status of the DA's Office local case against Wolf was not immediately clear.