The Madera County Sheriff’s Office received a tip from the National Center for Missing and Exploited Children (NCMEC) regarding suspected possession of Child Sexual Abuse Material occurring in Madera County.
Detectives identified 77-year-old Madera Resident William Mark Gann, as a suspect in this case.
On Wednesday, detectives with the Madera County Sheriff’s Office, in partnership with detectives from the Central California Internet Crimes Against Children (ICAC) Task Force and Special Agents from Homeland Security Investigations (HSI), executed a residential search warrant at Gann’s home located near the intersection of Walden and Berkeley drive in Madera.