1988 Chevrolet S10 Pickup

I AM A DETECTIVE WITH THE COUNCIL BLUFFS IOWA POLICE DEPARTMENT. THERE WAS A FATAL INCIDENT THAT OCCURRED IN WHICH THE ADULT MALE VICTIM HAD THE ENGINE RUNNING AND IN PARK. THE CARBURETOR WAS TAKEN APART AND THERE WAS A CAN OF CARBURETOR CLEANER WAS ON THE GROUND. A SINGLE BLADE OF THE COOLING FAN APPARENTLY BROKE OFF/CAME OFF OF THE FAN. THE BLADE CUT THROUGH THE PLASTIC 'PROTECTIVE' HOUSING. THE VICTIM WAS BELIEVED TO BE STANDING NEAR THE FRONT PASSENGER TIRE OR NEAR THE BATTERY (PASSENGER-SIDE HEADLIGHT AREA). A WITNESS REPORTED HEARING HIGH REVVING OF THE ENGINE AND IT WAS CONCLUDED THAT THE VICTIM WAS DOING SO MANUALLY. THE BLADE WAS FOUND RESTING ABOUT TEN FEET AWAY ON A STAIR APPROXIMATELY FOUR FEET OFF THE GROUND. THE VICTIM WAS FATALLY WOUNDED BY A DEEP CUT ACROSS THE LEFT SIDE OF HIS NECK WHERE HE LOST A SIGNIFICANT AMOUNT OF BLOOD. HIS WIFE FOUND HIM SHORTLY AFTER THE INCIDENT, MEDICS ARRIVED AND THE VICTIM WAS PRONOUNCED DEAD AT THE SCENE. PICTURES ARE AVAILABLE UPON REQUEST. THANK YOU. *TR