A mass shooting at the Mudbug Festival in Jackson, Mississippi, Saturday left at least one person dead and five others injured, according to officials. Two or three people began shooting around 10 p.m., Hinds County Sheriff Tyree Jones said late Saturday. It’s unclear what started the gunfire but two juveniles have been detained for questioning. Law enforcement officers from different agencies responded and at least one also fired, possibly killing one of the shooters, Jones said. “We will find out exactly what happened,” he said at a news conference. “We will find out who’s all involved, and …