Gary D. Marchalk, a 60-year-old attorney and legal administrator from Tamaqua, Pennsylvania, was killed at his Barnesville home on June 19, 2017. He had filed for divorce from his wife, Linda Marchalk, on May 11, 2017, and the couple were estranged at the time.

Authorities say Gary was killed by his son, Michael D. Marchalk, then 37, who was living with his father and had a history of drug addiction that reportedly fueled conflicts between them. Michael was charged with a range of offenses including criminal homicide, multiple degrees of murder, voluntary manslaughter, aggravated assault, robbery, theft, theft of a motor vehicle, access device fraud, and recklessly endangering another person. Michael admitted to killing his father at a preliminary hearing but asserted he did not intend to kill him.

The investigation involved state police Troop L Major Case Team and the Forensic Service Unit, and the county DA referred prosecution to the attorney general’s office. Does anyone have information about the family, their home in Barnesville, or the days leading up to June 19, 2017?