A case from back home: 16 year old girl vanishes from a parking lot. No enemies, friendly, popular in school, on the cheerleading squad. Searches are conducted, but the trail goes cold. No leads.
Six months later, a nineteen-year-old man confesses to the psychologist he'd just started seeing that he and a friend had killed her. She knew them from school, so when they asked her to drive them to "work" AKA a deserted location by claiming that they needed a ride and their car had broken down, she agreed. They then forced her out of her vehicle at that deserted location and into a waiting one, raped her and then suffocated her. Her body was buried in the woods. The two of them had been planning the crime for a while. She was picked on a whim- because she was there.
I went to school with her- I didn't know her well but I had met her. She was a lovely girl who would have grown up into a wonderful adult, but she never got the chance because of these evil people. Both of them are doing 99 years with no possibility of parole.