Mark Quadrel, a 58-year-old man from New Jersey, was fatally shot on October 24, 2018, in Norristown, PA. The incident occurred at his son Steven Mark Quadrel's apartment on East Airy Street. Steven, who was 24 years old at the time, shot his father multiple times during an altercation. The cause of death was determined to be gunshot wounds to the head and torso, and the manner of death was ruled as homicide.
Steven Quadrel was arrested shortly after the incident and charged with first-degree murder, aggravated assault, possession of an instrument of crime, and recklessly endangering another person. He was taken into custody without bail and later pleaded guilty to third-degree murder and other charges. In December 2021, Steven was sentenced to 22 to 50 years in prison for the crime.
The tragic incident also involved a 12-year-old boy who was shot by Steven Quadrel while riding his scooter near the scene. The boy sustained non-life-threatening injuries and was treated at a local hospital. Steven claimed he was suffering from a mental health breakdown and paranoid delusions at the time of the shooting, attributing his actions to the influence of the drug Adderall.
The case drew significant attention due to the interfamily violence and the impact on the community. The court emphasized the seriousness of the crimes and the need for a lengthy prison sentence to ensure public safety.
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