William Balfour, Jennifer Hudson’s estranged brother-in-law, has been charged with three counts of first-degree murder in the shooting deaths of Hudson’s mother, brother, and nephew.

Balfour had been in custody on a parole violation since the bodies of Hudson’s mother, Darnell Hudson Donerson, and brother, Jason Hudson, were discovered in their Chicago home in late October. The body of 7-year-old Julian King, Hudson’s nephew and Balfour’s stepson, was found in a car a few days later.

“This case is not a strong case against William. He is a convenient suspect,” said Balfour’s attorney Joshua Kutnick.

Balfour is the estranged husband of Jennifer Hudson’s sister Julia.