A police interrogation tape kept from public view for nearly a year has now surfaced, and the contents are as disturbing as the crime itself.
Mia Bailey — a biological male born Collin Troy Bailey — sits calmly across from Washington City investigators and methodically walks them through the June 2024 executions of his own parents inside their Utah home.
The footage captures then-28-year-old Bailey laying out what drove him to kill both parents, how he carried out the act, and the hours he spent running from law enforcement afterward.
Washington City police arrived at the home on East Chinook Drive at 7:02 p.m. on June 18, 2024, where they discovered the bodies of Joseph and Gail Bailey — but no weapon and no suspect.
According to arrest documents, Bailey shot his mother Gail multiple times, and when his father Joseph heard the gunshots and walked toward the commotion, Bailey shot him in the head. Joseph dropped immediately.
Bailey then returned to his father, who was still on the ground, and fired another shot into his head to confirm he was dead. He then walked back to his mother, who was still making sounds, and shot her in the head as well.
Bailey also attempted to shoot his brother and sister-in-law, firing through the locked door of a downstairs bedroom before fleeing.
In the interrogation, Bailey told investigators: “I went to my parents to do the deed. Kill them…It was spur-of-the-moment. I don’t regret it. I hate them. That was the last straw.”
When asked about remorse, Bailey told officers directly: “I would do it again. I hate them.”
The stated motive, delivered without visible emotion, centered on his mother’s decision to block a scheduled gender transition surgery.
“Mental health declining, that’s why I needed that surgery,” Bailey told investigators. “So much for family. I spent years trying to fix that broken a** family. Eventually, I had to get out, either going to kill myself or kill.”
Bailey said his mother’s interference became the breaking point, stating in the footage: “Enough is enough, I’m taking someone with me.”
At the time of the murders, Bailey was homeless and $20,000 in debt from hormone replacement therapy and other transition-related expenses.
After fleeing the scene in a yellow 2014 Kia Soul, Bailey described in the interrogation laughing while running through residential yards and hiding from police helicopters in the south St. George area.
Bailey told investigators he had considered standing on a cliff’s edge, intending either a police-involved shooting or a fatal fall. “I actually was going to plan on standing over the cliff,” he stated.
During the flight from officers, Bailey encountered civilians but chose not to harm them. “Enough dead people for the day, or for life, I should say,” he said.
Negotiations eventually led Bailey to lay down his weapon. Officers confirmed the gun was clearly visible before Bailey walked toward them and surrendered.
The confession ended with Bailey calling for expanded LGBTQ support and arguing that individuals should face less interference when pursuing gender transition procedures.
Bailey had legally changed his name and gender from Collin Troy Bailey in Utah’s 5th District Court in 2023, one year before the killings.
In November 2025, more than 17 months after the crime, Bailey entered a plea of “guilty and mentally ill” to two counts of aggravated murder and one count of aggravated assault as part of a negotiated plea deal, reduced from an original 11 felony counts.
Defense attorney Ryan Stout told the court that Bailey had voluntarily checked into a hospital for “paranoia, delusions and hallucinations,” was discharged after three days, and killed both parents ten days later.
Washington County Attorney Jerry Jaeger pushed for consecutive sentences, stating after the ruling: “Today wasn’t about Mia. It was about Joseph and Gail, two individuals whose lives were cut tragically short.”
Judge Keith Barnes sentenced Bailey in December 2025 to two consecutive 25-year-to-life terms for the murders, plus an additional zero-to-five-year term for the assault charge — a minimum of 50 years before any parole consideration.
Bailey currently serves his sentence at the Central Utah Correctional Facility in Gunnison, housed among male inmates in accordance with his biological sex.
