Career
A Republican, he was elected in 2010, defeating the Democratic incumbent, Lloyd Fields. Before his election he was a businessman who founded several technology companies. After taking office, he established a non-profit advocacy group to oppose the positions of public employee unions, and fought federal regulatory attacks on family farms.
July 27, 2010 Republican Primary
November 2, 2010 General Election
November 4, 2014 General Election
Costello died from stab wounds suffered during a domestic incident on August 23, 2015, at a Braum"s restaurant in Oklahoma City.