(KRON) -- An 83-year-old Solano County man was arrested last month after investigators located over 1,000 digital images depicting child sexual abuse material (CSAM) during a search at his residence, authorities announced Wednesday. The Solano County Sheriff’s Office served a search warrant on No vember 13 at a home in the 1000 block of Diamante Drive in Rio Vista in connection to an ongoing investigation into the possession of CSAM. After uncovering the digital files, Michael Hartwig was taken into custody, authorities said. Hartwig was booked into the Solano County Jail for alleged possession of child pornography. Bail was set at $45,000. Jail records on Thursday show he is no longer in custody. ...read more read less