A man beat his girlfriend 514 times in the span of three hours and 20 minutes, resulting in her death. The case, known as the Gangseo torture murder, was covered by SBS’ investigation show “Unanswered Questions” on Oct. 20, at about 2:20pm, 24-year-old Jeon reported his 28-year-old girlfriend had lost consciousness. When paramedics arrived at their below-ground apartment, the victim, known by the pseudonym Im Jan Di, was already in cardiac arrest.