William Schoenberger End of Watch: April 22, 1993 Age: 31 Rank: Trooper Agency: Wis. State Patrol Years of Service: 9 County: Eau Claire Location on Memorial: IV Incident Surrounding Death Trooper Schoenberger was protecting firefighters at the scene of a car fire when his squad car was struck by a semi tractor truck. He died 5 days later from injures. The incident that caused Trooper Schoenberger's death occured on 4/17/1993. Back