A mother and son wanted in connection with a fatal weekend stabbing in Charleston were arrested Monday in Minnesota after a high-speed pursuit along an interstate, authorities said.

U.S. Marshals' investigators and Minnesota state troopers took Christopher Tray Spriggs, 17, of Summerville and his mother, 34-year-old Shelly Diane Greene, into custody near Owatonna, Minn., said Charles Francis, Charleston police public information officer.

Spriggs is one of three suspects charged with murder in Saturday's stabbing death of 30-year-old Kindu Bost outside a West Ashley motel. Greene faces a charge of accessory to murder, police said.

The U.S. Marshals Service received information that the pair were headed for Minnesota on Interstate 35. They relayed that information to the Minnesota State Patrol, which sent troopers to the area, said Chris Connolly, supervising deputy marshal for the Minnesota district.

Troopers spotted the pair's vehicle Monday afternoon and gave chase. The pursuit lasted for about six miles before the suspects hit barbed strips laid across the roadway, disabling their vehicle near a rest stop, Connolly said. They were then taken into custody without incident.

Authorities had no information on what type of vehicle the pair were driving when they were caught. Initial reports had Spriggs and Greene traveling together in an orange 2007 Chevy Aveo with Florida plates.

The pair were being held in Minnesota late Monday, and it was unclear when they would be returned to Charleston to face charges.

Charleston police also have filed murder charges in the case against Summerville residents Steven Andrew Turnage, 18, and Tyler Kent, 19. Both are being held without bail at the Charleston County jail.

Investigators have not disclosed a motive for the killing.

Bost's mother, Francine Bost Haynes, said she can't imagine why someone would want to kill her son. "He was just a nice person, a very good person," she said. "He enjoyed all kinds of people and could get along with anyone."

Bost was a Lowcountry native, a North Charleston High School graduate and a father of two children. He had a 9-year-old daughter and a son, 6.

Reach Glenn Smith at 937-5556 or gsmith@postandcourier.com.