Satanist Decapitated Inmate Inside Cell Without Prison Guards Noticing: Report On 5/28/21 at 11:43 AM EDT Prison guards failed to notice that a self-proclaimed satanist deemed too violent to share a cell had killed and decapitated his inmate during their rounds, according to a report. During the night of March 8 to March 9, 2019, Jaime Osuna, 31, killed his cellmate, Luis Romero, 44, with a makeshift knife, show state documents seen by the Los Angeles Times. Two new reports on California prisons from the inspector general's office (OIG), obtained by the LA Times, have criticized the guards at Corcoran State Prison as well as the subsequent California Department of Corrections and Rehabilitation (CDCR) investigation into the murder of Luis Romero by Jaime Osuna.