In the quiet community of Middletown, Kentucky, a suburb of Louisville, the morning of March 12, 2025, was shattered by gunfire. Responding to reports of a shooting, police discovered John Thomas McQuillen, a 65-year-old male, lying wounded on Winter Springs Court. He was rushed to the hospital but succumbed to a single gunshot wound. McQuillen was a retired reserve deputy with the Jefferson County Sheriff's Office, having served for over a decade.
Neighbors in the Swan Pointe condominium complex, where he had lived for about seven months, remembered him as a nice and quiet man.
The investigation into McQuillen's death quickly focused on his son, 43-year-old Brandon Thomas McQuillen. The day after the shooting, Brandon was charged with his father's murder. The case took a more sinister turn when a 'suspicious package' found at the scene was identified as an explosive device planted under John McQuillen's vehicle. The Louisville Metro Police Department's bomb squad was called to safely detonate the device. A search of Brandon McQuillen's home and vehicle uncovered an AR-15 style rifle, materials for making explosives, and handwritten notes expressing his intent to kill his father.
The relationship between John and Brandon McQuillen was reportedly troubled, with court records revealing a history of domestic issues. Both men had taken out emergency protective orders against each other at different times. Brandon had a significant criminal history, including a prior conviction for kidnapping, for which he was sentenced to three years in prison. Less than two miles from the murder scene, he was arrested in an old ambulance he was believed to have used in the commission of the crime.
Following his arrest, Brandon McQuillen was indicted by a Jefferson County grand jury on charges of murder, violating an emergency protective order, and other offenses. He pleaded not guilty and was held at the Louisville Metro Department of Corrections on a $1 million bond. However, the legal proceedings came to an abrupt end on May 21, 2025, when Brandon McQuillen was found unconscious in his jail cell. Despite life-saving measures by officers and medical staff, he was pronounced dead. The Jefferson County Coroner's Office later confirmed that he had died by suicide.
