COLUMBIA, S.C.—The suspect in the killing of three people in rural South Carolina hopped on a plane after the shootings and was arrested hours later at a Florida hotel, authorities said. A man and two women were killed in the shootings Monday around 3 p.m. inside a Greenwood County home just off U.S. Highway 25, Sheriff Dennis Kelly said. A child was also hurt in the shooting, but managed to get out of the home and go to a neighbor who called 911, Kelly told The Index-Journal of Greenwood. Jeffery David Powell, 36, was arrested at a hotel in Jacksonville, Florida, deputies said in a statement early Tuesday morning. Kelly told the newspaper that Powell flew to Florida on a commercial flight but didn’t give details about how he got to the airport or what led to his arrest. Deputies were still trying to determine what led to the shooting, …