South Carolina Man Accused of Shooting His City Councilman Father and Two Other Family Members.

A Horry County, South Carolina man is in custody today after being accused of killing three of his family members.

25-year-old Matthew Dewitt was arrested this afternoon after police say he went on a killing spree.

On Sunday, around 4:40 p.m. police responded to a home on Highway 319 for a death investigation and it was later determined the death was a homicide, officials said.

The Horry County Coroner’s Office identified the victim as Natasha Stevens, 52, of Conway. The deputy coroner said that Stevens was shot and died of those injuries.

Later Sunday, around 7 p.m., officials said Richland County Sheriff’s Dept. responded to a home in the 400 block of Greensprings Drive outside of Columbia for a welfare check.

When deputies arrived, officials confirmed they found two people dead with apparent gunshot wounds. The Richland County Coroner’s Office identified the victims as Gloria Dewitt and James Dewitt, II (below), both 52, of Columbia.

It has been reported that Stevens and Dewitt are cousins.

Mayor Jake Evans said the community is "shocked and saddened" by his death.

The Town of Atlantic Beach, South Carolina, community is shocked and deeply added by the deaths of Councilman Jim DeWitt and his family," Evans said. "The Town is fully cooperating with the investigations into this matter by the Horry and Richland County Sheriff Department. We offer our condolences and deepest sympathy to the family.

Dewitt gave investigators a "Post-Miranda confession" and is being held at J. Reuben Long Detention Center. He is charged with murder and possession of a weapon of during a violent crime and is due to appear in court Wednesday morning.

This investigation is ongoing and we will report more details as they become available.