
In this courtroom sketch, singer and actress Jennifer Hudson testifies Monday, April 23, 2012, in Chicago at the murder trial of William Balfour, charged in the October 2008 killings of her mother, brother and nephew. (AP Photo/Tom Gianni)

In this courtroom sketch, singer and actress Jennifer Hudson testifies Monday, April 23, 2012, in Chicago at the murder trial of William Balfour, charged in the October 2008 killings of her mother, brother and nephew. (AP Photo/Tom Gianni)

Actress and singer Jennifer Hudson said her family didn't want her sister, Julia Hudson, to marry William Balfour, who is on trial for three killings. (Associated Press)

William Balfour has been charged with murdering three of actress and singer Jennifer Hudson's family members in 2008. Mr. Balfour faces a mandatory life prison sentence if convicted of murdering at least two of the victims. (Cook County Sheriff's Department)

Once testimony begins April 23, actress Jennifer Hudson is expected to attend every day of the trial in the October 2008 slaying of three family members. She is on a 300-name list of potential witnesses, though it's not certain she will testify. (Associated Press)

William Balfour is on trial in the slaying of singer-actress Jennifer Hudson's mother, brother and nephew. (AP Photo/Cook County Sheriff's Department, File)

Jennifer Hudson

Jennifer Hudson performs "I Will Always Love You" during a tribute to the late Whitney Houston during the Grammy Awards show on Sunday. (Associated Press)

Mr. Obama is welcomed by singer Jennifer Hudson and Chicago Mayor Rahm Emanuel at a Chicago fundraiser Wednesday. One Republican critic said of the president: "The first job Obama is interested in saving is his own." (Associated Press)