According to the informant, Reuben Johnson, most of the men had been killed after refusing extortion demands from the "trusty" guards. Their deaths were either falsely recorded as successful escapes, or recorded as deaths, but under false pretenses. Johnson, a lifer, gave details of murders and burials on the prison grounds dating back for decades, including a mass murder of about 20 inmates around Labor Day of 1940. Johnson was backed up by at least one other inmate, James Wilson. Wilson also asserted that returning escapees were routinely murdered.