COLUMBUS, Ohio (AP) — Police say a postal worker fatally shot his supervisor at a suburban Columbus post office and then killed a postal inspector outside of her apartment. The Columbus Dispatch reports the male suspect in the slayings Saturday was arrested outside the apartment and that a handgun was recovered. Police in Dublin say the suspect killed 52-year-old Lance Dempsey at that city's post office around 4:30 a.m. A Columbus homicide detective says the suspect killed the postal inspector about three hours later after waiting for her outside her apartment building.