An 82-year-old German man has gone on trial and confessed to the 1994 murder of Amy Lopez, a Texas nurse and Vietnam War veteran who went missing while visiting Ehrenbreitstein Fortress in Koblenz (a city in western Germany) during a European tour. Prosecutors allege that Hans S, who was 49 at the time, lured Lopez into a secluded area beneath the fortress before sexually assaulting and stabbing her nine times; he was only identified last year after advances in forensic technology allowed investigators to match DNA from her clothing to a saliva sample he provided voluntarily to a cold-case unit. A verdict is expected early next month, with Hans S facing a potential life sentence.