A Rochester man is facing 20 years in prison for possessing child pornography. Eric Birkedahl, 32, pleaded guilty to having 7,300 images and videos of child pornography on his desktop computer. Birkedahl reportedly told investigators he had been “struggling” with child pornography for several years. Birkedahl is also facing a $250,000 fine. Prosecutors say federal investigators became aware of Birkedahl amid an investigation into peer-to-peer file sharing.