A federal jury in St. George, Utah, has convicted Johnston Blackhorse, 42, of Aneth, Utah, on all counts of receiving and possessing child sexual abuse material (CSAM). The verdict came on Friday, April 17, 2026, as reported by the U.S. Attorney's Office for the District of Utah. Blackhorse was already on supervised release for a 2015 conviction of possession of child pornography when he committed these new offenses. According to evidence presented at trial, probation officers discovered CSAM on Blackhorse's computer during a home visit in February 2025. A forensic examination revealed six images of child sexual abuse material that had been deleted. This discovery led to his indictment on February 10, 2026.
The case highlights the ongoing challenges in prosecuting individuals who re-offend while under judicial supervision. Blackhorse's defense involved a forensic wiping program found on his computer, which he had apparently used on the same day as the probation visit. The prosecution successfully demonstrated that despite these measures, the CSAM was recoverable. The conviction underscores the seriousness of child exploitation offenses and the legal system's commitment to holding offenders accountable, even when they are already under scrutiny.
This case is a stark reminder of the persistent nature of these crimes and the importance of continued vigilance by law enforcement and probation officers. The United States Department of Justice emphasizes its dedication to prosecuting those who engage in such heinous acts, aiming to protect vulnerable individuals and uphold justice. The sentencing details for Johnston Blackhorse are yet to be announced.