RACINE, Wis. (AP) — Sheriff’s officials say three people found fatally shot at a residence in Racine County last week were family members. Investigators believe 30-year-old Matthew Vinz killed his parents, whose bodies were found concealed in the home’s garage.

Officials say 65-year-old Terrence Vinz and 62-year-old Debra Meagher had been dead “for a significant amount of time.”

Deputies checking on the welfare of the family last Friday said they heard a single gunshot as they arrived at the home in the Village of Rochester, took a tactical position and set up a perimeter. They found the couple’s son dead from a self-inflicted gunshot in the home’s basement.