That's when the parents called police, trying to find their missing son.

>> Read more trending stories  

As it turns out, Steindorf wasn’t scheduled to graduate.

"Apparently, he wasn't enrolled this fall," Jon's father Paul told the Centre Daily Times. It was "our understanding that he completed fall classes, and he delayed graduation, until now," Paul explained.

Friend Rebecca Sommer used social media to confirm Jon’s keys, credit cards, keys and phone were in his apartment. Paul thinks Jon left the ID to make tracing him harder.

Local police found him walking down a sidewalk. They spoke to him and determined he was not a danger to himself or others and gave him a ride home, after he agreed to go back to his family, The Centre Daily Times reported.

More here.