Rochester, MN (KROC-AM News) - The Olmsted County Sheriff’s Department is reporting the arrest of a Rochester man on child pornography charges and say the same man was convicted of child porn charges several years ago.

Acting on a tip from an organization that works to track down child pornographers on the Internet, authorities executed a search warrant at the home of 22-year-old William Doherty in southwest Rochester on Friday seized over 1000 suspected child pornography images.

Doherty, who was sentenced to five years on probation for his 2013 conviction, was arrested on Monday when he reported for a probation hearing at the Olmsted County Courthouse. A spokesman says he spoke with investigators and admitted downloading and viewing the materials.

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