A man was stabbed.

But as to who that man is, who stabbed him, and why he was stabbed are all questions Gainesville Police  are trying to answer.

The mystery began around 4:30 a.m. Monday when an off-duty firefighter noticed a man running down southwest Archer Road toward Tuscan Bend Apartments.

His stomach had been sliced open.

The paramedic called 911, and the man was taken to Shands and rushed to surgery.

Police say no identification was found on the victim -- who they describe as a Hispanic male in his early 20s.

A canvass of the neighborhood surrounding the 3000 block of southwest Archer Road yielded no answers.

"Our detectives are actually kind of having to work it backwards," Gainesville Police Department spokesman Ben Tobias said. "We have a victim, but we don't know what kind of crime we have or if we have a crime or where the crime scene may be located."

Police were able to lift fingerprints from the victim.

They are also waiting to talk to him. 

He remains at Shands in critical condition.