The discovery of the brain tumor in May 1984 introduced a significant complicating factor. The tumor was benign and described as approximately the size of a walnut. Gay Sr.’s defense team argued it could have affected his judgment and impulse control. The prosecution maintained that Gay Sr. was competent to stand trial, and the judge agreed.
The photographs of Gay Sr.’s injuries—taken in the immediate aftermath of the shooting, documenting bruising and contusions consistent with having been struck by someone younger and physically stronger—were presented in the proceedings. They documented, concretely, that Gay Sr. had been attacked before he retrieved the weapon.
This did not legally justify the shooting under California law. The legal doctrine of self-defense, as applied in 1984, would have required Gay Sr. to demonstrate a reasonable belief of imminent serious bodily harm at the moment he fired. The eight-minute interval between the fight and the shooting—the time during which he left the room, retrieved the weapon, and returned—significantly complicated any self-defense claim.
The no-contest plea to voluntary manslaughter, entered September 20, 1984, represented a negotiated resolution that avoided the uncertainty and cost of a full trial. Voluntary manslaughter under California law covers killings done in the heat of passion—situations in which extreme provocation reduces what might otherwise be murder to a lesser offense. The plea allowed Gay Sr. to acknowledge responsibility without admitting first-degree intent.
The sentencing on November 2, 1984, drew significant public attention. Gay Sr. was 70 years old—he had turned 70 in October. He had recently undergone surgery to remove the brain tumor. The judge, in imposing a six-year suspended sentence and probation, explicitly cited Gay Sr.’s age and health as factors.