(North Charleston, SC) -- A fourth person is in custody in connection to a deadly mass shooting.
A 14-year-old was killed and 14 other people were injured at an unauthorized concert in North Charleston on May 22nd.
On Thursday, 18-year-old Malachi Wigfall was arrested with the help of U.S. Marshals. He is one of four men facing charges of manslaughter, assault and battery of a high and aggravated nature, and possession of a firearm during the commission of a violent crime.
More arrests are expected as police continue to investigate.