Austrian police are investigating whether the unsolved killing of a young woman in 1986 is connected to a man who confessed this week to holding his daughter captive in his basement for 24 years and fathering her seven children. - The body of 17-year-old Martina Posch was discovered near a vacation property owned by Josef Fritzl's wife 10 days after the teen disappeared in 1986. Upper Austrian police Chief Alois Lissl said there were no concrete links in the case, but police are checking whether Fritzl had an alibi. - Posch's body is reportedly being exhumed so DNA tests can be conducted, according to freelance journalist David Hill, who named Fritzl as the main suspect in the unsolved case. Authorities did not confirm the report. - Meanwhile, more details have emerged about the three children taken from the basement cell in Amstetten, west of Vienna, where police say Elisabeth Fritzl was kept hostage and repeatedly raped since her disappearance in 1984...