INDIANAPOLIS – An Indiana man has agreed to plead guilty to charges alleging that he tricked more than a dozen teenagers into stripping or performing sexual acts for him via webcam and then used recordings of those sessions to coerce them into making even more explicit videos.

Richard Finkbiner, who lives in the western Indiana community of Brazil, signed an agreement filed Wednesday in federal court in Terre Haute to plead guilty to child exploitation, extortion and possession of child pornography in exchange for a recommended sentence of 30 to 50 years in prison.

U.S. Attorney Joe Hogsett previously said that his office would seek an effective life sentence if a jury convicted Finkbiner.