Jennifer Hudson tragedy: William Balfour arrested

Chicago police said today they have arrested William Balfour for the murders of Oscar-winning actress Jennifer Hudson's family members.

Balfour, 27, has been in custody in Stateville Correctional Center on a violation of parole and was transferred to Chicago police custody after police served a warrant for his arrest Monday. He was then transported to the Wentworth Area, where he will be held pending charges approved by the Cook County State's Attorney's Office.

At a closed hearing last month, investigators presented evidence that Balfour had a gun matching the weapon used in the Oct. 24 slayings of Hudson's mother, brother and 7-year-old nephew.

Balfour is the estranged husband of Hudson's sister, Julia. He was scheduled for another parole violation hearing on Wednesday.