An endangered/missing person from Hartford, South Dakota may be in the Black Hills.

Authorities are looking for 22-year-old Matthew Vanderwerff, who left home despondent and is believed to be endangered.
http://liarcatchers.com/missing_persons_investigations.html
He is 6–2, 150 pounds with brown eyes and brown hair. Vanderwerff had recent surgery on his feet. He was driving a 1999 Pontiac Bonneville. Vanderwerff also went missing in April and was found near Custer.
If you have any information, call authorities. Do not take action to rescue him.