Kenneth Markeith Chisolm

Kenneth Markeith Chisolm. Colleton County Sheriff's Office/Provided

Authorities have arrested a 19-year-old man in connection with a triple homicide in the small community of Ruffin.

The Colleton County Sheriff's Office and agents with the State Law Enforcement Division took Kenneth Markeith Chisolm into custody at 6:35 p.m. on Thursday, said Lt. Tyger Benton, a Sheriff's spokesman.

Chisolm is suspected in the shooting deaths of 46-year-old Phillip Miller, 52-year-old Lori Miller and 13-year-old Vincent Miller on Tuesday, Benton said. He has been charged with three counts of murder.

The victims were later identified as relatives. Phillip and Lori were married and Vincent was their son. The couple's 9-year-old granddaughter suffered a gunshot wound to the leg but survived.

Deputies were called to 21785 Lowcountry Highway, also known as U.S. Highway 21, about 4:48 p.m. Tuesday for a report of multiple shots fired with possible fatalities. The couple and the boy were dead when authorities arrived.

Investigators found marijuana inside the home, but they did not know whether it was connected to the shooting, Benton said on Tuesday.

The shooting left some in the tiny community on edge.

At nearby Ruffin Baptist Church on Double Churches Road, Pastor Barry Morehead said residents are awaiting answers. He returned home just before dark Tuesday to a sea of blinking blue police lights. Neighbors congregated in their yards.

"People are puzzled. People were a little nervous last night. I think there were a lot of lights left on," Morehead said. "We don’t get this much attention all the time."

Morehead had visited the family's home several times to invite them to church events, but he didn't know them well. He often saw the kids playing outside. The family kept several dogs out back and in the front yard, he said.

The investigation into the shooting continues.

Anyone who sees suspicious activity or believes they have information about the shooting is asked to contact the Colleton County Sheriff's Office at 843-549-2211.

Reach Gregory Yee at 843-937-5908. Follow him on Twitter @GregoryYYee.

Gregory Yee covers breaking news and public safety. He's a native Angeleno and previously covered crime and courts for the Press-Telegram in Long Beach, CA. He studied journalism and Spanish literature at the University of California, Irvine.