What exactly happened to Adam Campbell?
It's been more than two years since the 26-year-old Campbell was found dead in a burned out vehicle on South 19th Street in Escanaba.
His death has not been officially ruled a homicide, but police say the circumstances are suspicious.
Since Campbell's body was recovered and identified on April 9, 2011, police have received many tips and other pieces of information, but the case remains unsolved.
"Throughout the last year, we've had continuous developments. They've been investigated, and none of the leads we've received has really come to fruition at this point, so although the investigation is still open, the progress is slow," said Captain James Segorski of the Escanaba Public Safety.
A $6,000 reward is still being offered for information leading to an arrest or conviction in the case.
If you have any information about what happened to Adam Campbell, you are asked to contact Escanaba Public Safety at (906) 786-5911.