The sister of Oscar-winner Jennifer Hudson has told jurors about discovering her slain mother's body in 2008.

Julia Hudson testified Monday in the Chicago trial of her ex-husband, William Balfour. He is accused of killing her mother, brother and 7-year-old son in a jealous rage four years ago.

Julia Hudson told jurors about coming home from work to discover her mother's bloodied body. She said she ran outside and screamed, 'Someone killed my mother!"

Earlier, she told jurors that her Balfour was so jealous that at times became angry when her son, Julian King, kissed his mom.

Jennifer Hudson testified earlier in the day.

Balfour has pleaded not guilty to three counts of first-degree murder in the October 2008 slayings.