The Starke County coroner says Isaiah Grounds died from blood loss and injuries from a car crash.
The 26-year-old went missing on Dec. 9 at a Grovertown truck stop.
His wrecked car was found abandoned nearby, smeared with blood.
Two weeks later, search crews found his body in a ditch near his home.
According to our reporting partners at WKVI, grounds also suffered severe cold exposure.
The investigation is ongoing.