ST. PETERSBURG, Fla. (AP) - A jury has found a man guilty of first-degree murder in the 2002 killing and decapitation of his ex-girlfriend's lover.
A judge sentenced Dennis George Roache to life without parole.
Authorities say 40-year-old Roache broke into the home of a former girlfriend in 2002 and began fighting with her new boyfriend, 18-year-old Gregory Shannon. Shannon was stabbed and decapitated with a machete.
Police say Roache placed the victim's head on a car hood outside, adjusted the rearview mirror so it appeared the head could see its reflection, then peacefully surrendered to officers.
His attorneys presented an insanity defense based on Roache's history. He has been committed to a state mental facility twice.
(Copyright 2008 by The Associated Press. All Rights Reserved.)