Coon began his career as an officer for the Pittsburgh Police in 1952, and rose through the ranks to assistant superintendent. Coon was elected Sheriff in 1969, succeeding the retiring William Davis. He was once called "America's Toughest Cop" by a men's magazine. While he was head of the Pittsburgh homicide squad, the unit solved 57 homicides in a row. He resigned from Pittsburgh in 1969 to run as a Democrat for Sheriff of Allegheny County, Pennsylvania, a position he would hold through seven subsequent elections, ending his career in 1997. He became chair of the Allegheny County Democratic party in the early 1970s. He also ran unsuccessfully for Allegheny County Commissioner and Pittsburgh Mayor. Gene gained national recognition on January 3, 1983 when he refused to place homes of unemployed steel workers up for public sale following foreclosure proceedings. He was named to the Pennsylvania Police Hall of Fame on January 27, 1990 and served as a bagpiper in many a St. Patrick's Day parade. He died in his South Side home on Oct. 21, 1998, at age 68.
FBI files
It was revealed in 2011 by WTAE-TV in Pittsburgh that the FBI had kept extensive files on Sheriff Coon beginning in the early to mid-1970s and suspected him of "protecting" and "enforcing" for the Pittsburgh Mob, most notably Tony Grosso's organization. No charges or public investigation were ever pursued, however the files connect Coon with the same organization that Federal investigators suspected in the death of District Attorney for Pittsburgh Robert Duggan in early 1974. Then-United States District Attorney, and later Governor of Pennsylvania, Richard Thornburgh chose to close the cases and the investigation by 1975.
Accident
In 1988 Sheriff Coon was involved as a pedestrian in an accident with a car, losing one of his legs because of injuries he had suffered.
Rifle shots at party
While in his last term as Sheriff on November 6, 1994, Coon was disturbed at his suburban Donegalsecond home by a party target shootingnext door while he was taking a nap. Pennsylvania State Police responded after Coon had attempted to have his neighbor quiet the party and exhausted in failing that, fired rifle shots to quiet the party crowd.