Jennifer Hudson’s sister divorced the man accused of murdering Hudson's mother, brother and nephew, WGN learned Wednesday.

Julia Hudson filed for divorce from William Balfour on August 22, 2011, and the divorce was finalized on December 6, 2011, according to the Cook County Circuit Court Clerk.

Balfour is charged with three counts of first degree murder and one count of home invasion.

Opening statements in his trial are set for April 23. The trial is expected to last about a month.