In the quiet desert landscape of Oro Valley, Arizona, the life of a dedicated law enforcement officer came to a violent and mysterious end. Willis Henry 'Bill' Gravell, a 49-year-old male detective with the Oro Valley Police Department, was found deceased on March 28, 1989. He had sustained two gunshot wounds to the chest from his own. 38-caliber firearm, fired at very close range. His body was discovered on the pavement next to his unmarked police car on Arizona Highway 77 and West Linda Vista
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