An Ohio man's resentment of authority and run-ins with the law prompted a local sheriff to warn that he may be dangerous if confronted by law enforcement. Years later, it appears the sheriff was right.

Authorities said Friday that 45-year-old Jerry Kane Jr. of Forest, Ohio, and his teenage son Joseph Kane fatally shot two Arkansas police officers during a traffic stop Thursday in West Memphis. Father and son were later killed in a shootout.

Jerry Kane publicly questioned the government's authority and had a long history with police.

Sheriff Gene Kelly in Ohio's Clark County says he warned law enforcement about Kane in July 2004, after Kane complained that a judge "enslaved" him when he was sentenced to six days of community service for traffic violations.