The 51-year-old Cullen however, pleaded guilty to manslaughter, saying he stabbed his 39-year-old wife in self defense.
Cullen said he lost his cool after his wife with whom he had three children, boasted in open court about how fantastic her sex life has been after she moved out of his house.
The duo had gone to court regarding a civil matter, when she kept taunting him how she had a boring sex life with him but now that she is a free woman, she has the best of sex.
The body of Cullen was found face down in the parking lot of a fishing club, with her throat cut, her nose was broken, and her face severely bruised and her clothes were soaked in blood.