LAKELAND, Fla. — Authorities in Florida say a 27-year-old man fatally shot his ex-girlfriend’s new boyfriend, an off-duty firefighter. Polk County Sheriff’s officials say Caleb McKinney was waiting for his ex-girlfriend and her boyfriend, Clifford Cofer, to arrive home Wednesday night. Sheriff Grady Judd says when the couple pulled into the driveway, McKinney ran across
