Summary of Offense:
He killed Sgt. Charlene Calhoun of Tinker Air Force Base in 1987 outside a Del City apartment in an attempt to steal her car. He was convicted in 1996. The murder was part of a cross-country crime spree with his girlfriend, Mona Lisa Watson. Howell also has been sentenced to death in Tennessee for killing a Memphis convenience store clerk less than 24 hours before Calhoun's slaying. The couple were arrested in Florida driving Calhoun's car and engaged in a shootout and high-speed chase with police officers. Watson received life in prison for both killings. Defense attorneys for Howell argued unsuccessfully that his violent behavior was caused by brain damage and drug use.
Howell has been on death row since May 6, 1996.
For more on his Tennessee case, see: http://www.cncpunishment.com/forums/...michael+howell