VALLEJO (KRON) — Robert Vega was arrested Thursday for the murder of an off-duty Richmond police officer during a domestic dispute in Vallejo.

Gus Vegas, 58, was shot and killed in his own home around 4:30 a.m. in the 30 block of Narragansett Court near Glen Cove.

Vegas was attempting to stop an argument involving one of his adult children when he was shot multiple times.

WEB LINK: GoFundMe.com for Det. Gus Vegas

Vega, 30, is the father of Vegas’ 6-year-old grandson who was at the house when the shooting occurred.

The gunman fled the scene with the 6-year-old. Police later located Vega in Fairfield and arrested him.

Vegas was a 15-year-veteran of the Richmond Police Department.

Officers of the Richmond Police Department are devastated and tell KRON 4 New that he was beloved by his fellow officers. They praised him for his active work in the community.