Aaron Mikkelsen, an Antioch man who previously served a six-year state prison term after pleading guilty to sexually abusing a child under 13, is now facing a new federal child pornography indictment. Investigators say a technology company alerted authorities, and a February search of his electronic devices allegedly turned up child sexual abuse material. Mikkelsen first appeared on the indictment in March, was remanded to custody, and now has a federal hearing set for May 13.
Federal prosecutors allege Mikkelsen downloaded and saved child pornography on multiple electronic devices, according to The Mercury News. The outlet reports that investigators received a cybertip from a tech company that prompted the February search and led to the seizure of files that are now described in the indictment. The filing accuses him of possessing and saving images and videos on his phone and other devices.
Past Conviction And Sentence
Mikkelsen previously admitted in 2019 to sexually abusing a child under 13 and served a six-year state prison term, according to contemporaneous coverage by the Martinez News-Gazette. Authorities said that an earlier investigation, led by an Internet Crimes Against Children task force, recovered a significant amount of child sexual abuse material from his phone and social media accounts.
Court Timeline
At his first appearance on the federal indictment in March, a judge remanded Mikkelsen to custody and entered the new charges into the record. He faces federal counts alleging receipt and possession of child sexual abuse material, and his next hearing is scheduled for May 13, according to The Mercury News. Prosecutors say the cybertip and the February search of his devices form the backbone of the federal case.
Why Tech Reports Matter
The case shows how platform reports can kick-start investigations: companies flag suspected child sexual abuse material, and the National Center for Missing & Exploited Children routes those tips to law enforcement, a process described on the Department of Justice’s Project Safe Childhood page. Project Safe Childhood coordinates federal, state and local resources to investigate and prosecute cases involving online child sexual exploitation. An indictment is an allegation, and the defendant is presumed innocent until proven guilty in court.
