The Pickering husband and the hit man thought they could get away with killing his wife.

But in 2018, a judge convicted David Knight and Graham MacDonald of first-degree murder in the death of mom Carmela Knight, 39, after the hired assassin unwittingly confessed the plot to “friends” who were actually police officers involved in a three-month undercover sting operation.

MANDEL: Pickering husband, hit man he hired to kill wife lose murder appeal Back to video

On appeal, they claimed MacDonald’s “Mr. Big” confessions were an abuse of process and should have been inadmissible. Ontario’s highest court has just disagreed.

In 2014, Carmela, the mother of two, had discovered her husband was having an affair and demanded a divorce along with child and spousal support. She had just filed an emergency family court motion for sole possession of the marital home that was to be heard in three days. Court heard Knight’s answer was to hire MacDonald to strangle her to death, drag her body into the garage, douse her with gasoline and set her on fire.

Court heard he would then be able to be with his Florida mistress and collect on his wife’s $850,000 life insurance plan — cash he........

© Edmonton Sun