A Utah man who served two years in prison for breaking a child’s arm pleaded guilty last week to killing a 2-year-old boy and will spend the rest of his life in prison.

Jonathan Allen Dunn, 37, also pleaded guilty to abusing the toddler’s twin sister, who was hospitalized with a brain bleed, according to KSTU.

Dunn was sentenced to life without parole in a plea deal that took the death penalty off the table.

“I’m sorry for what I’ve done and it haunts me every day, and I hope one day the family can forgive me for what I’ve done,” Dunn said at his sentencing.

Dunn was babysitting the two children on December 20, 2023, despite a May 2017 conviction for breaking the arm of a child in his care in 2016, as CrimeOnline reported. He was released from prison in April 2019 and was on parole until December 2021.

On the night of the murder, several other children, including another 2-year-old, were in the house. Charging documents say that Dunn told investigators he started punching the children “harder than he should have” while they were reportedly playing a game. He pinched them hard, including on the genitals, and threw them onto the bed repeatedly, hit them on the head with the butt of a Nerf gun, and pushed him into a doorframe head first.

He gave them medicine for pain before putting them to bed, but the boy was wheezing in the morning, so he gave him more pain medicine. Later in the morning, he stopped breathing, and Dunn called 911.

“This is not a mistake, this is not an accident, this was not anything other than intentional depravity,” said Judge Noel S. Hyde at the sentencing hearing, according to KSTU. “There are no words that can adequately describe the level of depravity that this situation provokes.”

Dunn entered guilty pleas to aggravated murder, two counts of aggravated sexual abuse of a child, and aggravated child abuse on August 13.

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