Jennifer Hudson and her mom in December 2006
10/24/2008 AT 06:10 PM EDT
One of two gunshot victims found in a Chicago home Friday is believed to be a relative of Jennifer Hudson
, and police are searching for a 7-year-old boy and a man.
"We are handling a double-homicide," says Chicago police spokesman Officer John Mirabelli. "Those [two] victims sustained fatal gunshot wounds."
He declined to comment on several media reports that one of the victims was Hudson's mother.
The victims – a man and a woman – were found by officers in a South Side home listed in the name of Hudson's mother. Police say the two deceased people appeared to have been involved in a shooting related to a domestic disturbance.
"We are searching for a young boy from that address who is missing," says Mirabelli. "We are seeking to interview the adult male."
The boy was identifed as Julian King, who is believed to be the grandson of the female shooting victim. An Amber Alert
has been issued for him.
The man, identified as William Balfour, 27, may be driving either a white Chevrolet Suburban (Illinois X584859) or a teal Chrysler Concorde four-door with the left front headlight hanging down (Illinois 332K823).
A rep for the American Idol
alum/actress did not immediately comment.
Hudson, 27, recently got engaged
to boyfriend David Otunga. The actress stars in the current film, The Secret Life of Bees.