Police investigating the killing of actress Jennifer Hudson's mother and brother are still trying to find the missing seven-year-old
The mother and brother of American actress Jennifer Hudson were found dead on Friday at this house in Chicago.
Darnell Donerson and Jason Hudson had been shot.
Hudson's seven-year-old nephew Julian King hasn't been seen since.
Police have asked the FBI to help trace him.
Hudson's sister is appealing for his safe return.
SOUNDBITE: Julia Hudson saying (English):
"I just often feel he's out there. I know he's out there. Just let him go. Put him on the side of the street. He'll sit there. Just let him go, somebody will see him."
Police are questioning a man but have so far refused to name him or describe him as a suspect.
SOUNDBITE: Jody Weis, Chicago police superintendent, saying (English):
"We're not going to comment on that. We're just not going to tip our hand on that. We're still looking. We've got a lot of forensic information to to through. We've got a double homicide inside a home that creates a lot of potential evidence."
Hudson hit the spotlight three years ago at a contestant on the U.S. talent show American Idol.
She didn't win but she kept touring in live shows and gained Hollywood stardom when she scooped a movie role which earned her an Oscar for best supporting actress.
Paul Chapman, Reuters
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