A prison inmate from California confessed in a letter that he beat 2 child molesters to death with a cane while he was behind bars.

41-year-old Jonathan Watson confessed in the letter to the Bay Area News Group in Northern California that he clubbed both men in the head on January 16, 2020, at the California Substance Abuse Treatment Facility and State Prison in Corcoran.

48-year-old Prisoner David Bobb died on the same day, and 62-year-old Graham De Luis-Conti died 3 days later at a hospital.

The 2 prisoners were serving life sentences for aggravated sexual assault of a child under the age of 14.

Dana Simas, the spokesperson of the California Department of Corrections and Rehabilitation, said, “We can’t comment on an active investigation.”

Watson is serving a life sentence for a 2009 murder conviction.

Days before the killing, the security classification of Watson was changed and he was transferred from a single-person cell to a lower-security dormitory pod at the Central Valley Facility.

Watson said the switch was a careless mistake and said he had protested the decision.

Watson said 6 days after he was moved, a child molester moved into the pod.

Watson said the man began taunting other inmates by watching children’s television programming.

In the letter, Watson said he could not sleep that night, adding: “having not done what every instinct told me I should’ve done right then and there.”

2 hours before the attacks, Watson told a prison counselor that he urgently needed to be transferred back to higher-level security before he does something to one of the child molesters.

Instead of doing anything, the counselor scoffed and dismissed him.

Watson said he returned to his housing pod.

In the letter, Watson said, “I was mulling it all over when along came Molester #1 and he put his TV right on PBS Kids again. But this time, someone else said something to the effect of ‘Is this guy really going to watch this right in front of us?’ and I recall saying, ‘I got this.’ And I picked up the cane and went to work on him.”

Watson said he left the housing pod to find a guard so he could turn himself in, but as he was finding one, he saw a child trafficker.

Watson said he wanted to do everybody a favor, adding, “In for a penny, in for a pound.”

Watson told the guard what he did, but he did not believe him until he looked around and saw the mess that he left in the dorm area.

Watson is currently in segregated housing while he is being investigated for the crimes that he committed.

Official reports suggest that he hasn’t been charged yet.

In the letter Watson added, “Being a lifer, I’m in a unique position where I sometimes have access to these people and I have so little to lose.”

He continued, “And trust me, we get it, these people are every parents’ worst nightmare.”