In a quiet Waddell, Arizona neighborhood, the night of March 16, 2026, was shattered by a domestic dispute that ended in the tragic death of 50-year-old Heather Marin. Heather, a female, was at the home she once shared with her estranged husband, 60-year-old Robert Marin, near Olive Avenue and Perryville Road. The couple was in the midst of a separation and divorce proceedings, and the situation escalated into a fatal encounter.
Their teenage daughter, who was present in the house,
became a key witness to the harrowing events. She reported to authorities that she heard her mother pleading for her life, followed by the sound of multiple gunshots. According to court records, the daughter called 911 after this terrifying sequence. Prosecutors later stated that Heather had been lured to the residence by her estranged husband.
When Maricopa County Sheriff's Office deputies arrived at the scene around 9:30 p.m., they discovered a grim tableau. Robert Marin was found in the garage with blood on his clothing and shoes. In a display of chilling indifference, he was reportedly smoking a cigar. Authorities also located a firearm, a holster, and spent casings in the garage. After being taken into custody, deputies noted a strong smell of alcohol on him.
Robert Marin was arrested and is facing a first-degree murder charge. He is being held on a $2 million cash bond. The investigation has revealed a history of domestic turmoil. Court documents indicate previous, unreported incidents of domestic violence. In one such instance a month prior, Robert had allegedly threatened to shoot Heather in the head. The couple's daughter also told investigators about hateful and threatening text messages exchanged between her parents and confirmed her father's ownership of multiple firearms.
