The Car Dispute Theory--Pursued By Chicago Police Department

Law enforcement sources now tell they are indeed looking into what appears to be a dispute over a car in the investigation of the murders of Jennifer Hudson's mother and brother.

Julia, the estranged wife of suspect William Balfour, complained that Balfour wrongfully sold a car, causing her to hitch a ride with brother Jason, one of the victims.

Several neighbors last night talked about a recent dispute over stealing a car, in which an unnamed family member promised "revenge." Several other neighbors this morning who say Julia complained to them that William Balfour sold one of their cars without permission.One neighbor told the dispute got so heated William threatened to "kill Julia's family" but she didn't report it because she didn't take it seriously.

As for the dispute over the car being the trigger, sources say cops are pursuing the lead but are looking at everything.

And law enforcement sources say people other than Balfour have been interviewed as well.

UPDATE: WFLD in Chicago has confirmed the FBI is now assisting the search for Julia's 7-year-old son, Julian King.

Hudson Murders--The Twists & Myteries

The nephew of Jennifer Hudson is still missing. The suspect in the murders of her mother and brother is in custody. And there are several interesting twists and myteries.

William Balfour, the estranged husband of Hudson's sister, Julia, is in custody but isn't talking and responding much. In a cryptic statement, a Chicago PD spokeswoman said investigators are talking to "a number of people in custody." She didn't explain further.

Cops say at least one of the victims had defensive wounds, which led them to believe the shootings involved domestic violence.

Here's the most interesting thing -- neighbors in the area who know the family well say a few weeks ago a family member tried stealing a car, which triggered a heated argument in which the would-be thief promised revenge. No one was named specifically, but Balfour spent nearly 7 years in prison for attempted murder, vehicular hijacking and possession of a stolen vehicle.

On Julia's MySpace page, recently posted a picture of Jason (one of the victims) in a vehicle. The caption below reads, "Jason picking up my ass from work, cause William bitch ass sold my car."