KENNESAW, Ga.—Authorities on Thursday afternoon arrested a man in the killing of three men found shot to death on the golf course of a suburban Atlanta country club. Cobb County sheriff’s deputies and U.S. marshals arrested Bryan Rhoden in Chamblee, more than 25 miles (40 kilometers) southeast of where the slain men were discovered Saturday, Cobb County Police Chief Tim Cox said during a news conference Thursday evening. Rhoden faces three counts of murder, three counts of aggravated assault and two counts of kidnapping, Cox said. The police chief described Rhoden as the “lone shooter” in the slayings but he declined to give further details about what prompted the violence. “We literally had detectives that have worked around the clock and some have literally slept in their offices since July 3rd trying to clear this case,” Cox said. Police say golf pro Eugene Siller was gunned down Saturday when he …