Durham police have charged a third man in the 2014 murder of a Pickering woman whose body was found in the remains of her burned home.

The body of 39-year-old Carmela Knight, a mother of two, was discovered after a fire engulfed her Pebblestone Cres. home and its two-car garage in September 2014. Police said an autopsy showed obvious signs of trauma to her body, at first deeming her death suspicious and then as a homicide.

Knight’s husband, David, and Graham Macdonald were arrested and charged with first-degree murder in February.

In March, police issued a Canada-wide warrant for David’s brother, a former Ajax resident. He was arrested in Florida and deported to Canada, where he was arrested upon arrival at Pearson International Airport Tuesday night.

Matthew Knight, 36, has been charged with conspiracy to commit murder and accessory after the fact to murder.

Anyone with new information about the investigation is asked to contact Det. Jennings (ext 5223) or Det. Taylor (ext. 5405) of the Major Crime Homicide Unit at 1-888-579-1520.

With files from Star staff