A domestic dispute in north Phoenix ended with the death of 60-year-old Karl Derek Thau on the evening of July 28, 2025. Police were called to a residence near 14th Street and Topeka Drive at about 7:41 p.m. after reports of a shooting. Officers found Thau unresponsive with an apparent gunshot wound; Phoenix Fire Department paramedics pronounced him dead at the scene.

Investigators identified and detained an 85-year-old man at the home, Robert Angelo Feola, who was later described as Thau’s father-in-law. After an interview at Phoenix Police Headquarters, Feola was arrested and booked into the Maricopa County Jail on a charge of murder. Authorities say the incident stemmed from a domestic dispute; specific details about what led to the shooting remain part of the ongoing investigation.

Did anyone in the area know Karl Derek Thau or have information about his relationships with family or neighbors?