Unsolved is a true crime podcast series from 9&10 News.
Each month, David Lyden will dive into an unsolved crime in northern Michigan.
It’s been six years since Michigan State Police say someone hit and killed Central Michigan University student Ryan Tsatsos as he was walking back to campus.
But there still hasn’t been an arrest in the case.
Paul and Julie Tsatos say their son Ryan was always known as the life of the party, a young man who could make any bad situation good.