The mother of Hudson family murder suspect William Balfour has made an explosive allegation that last week’s grisly South Side home invasion was the result of drug dealing.

Michele Davis-Balfour made the comments on CNN’s Nancy Grace show while defending her son from what she feels is a smear campaign against his character.

“My son was not arrested, he turned himself in,” Davis-Balfour clarified. “It’s also a lie that he was caught with a weapon. The truth is Jason [Hudson] was selling drugs out of the house.”

Jason Hudson, brother of Oscar winner Jennifer Hudson, was murdered along with his mother Darnell Donerson in her South Side, Chicago home.

Several days later, the body of Hudson’s 7 year old nephew Julian King was discovered on the West Side in an abandoned SUV.

A post mortem indicated he had been shot 5 times at close range.

Police recovered a gun this afternoon in a vacant lot near where Jennifer Hudson’s nephew was found shot to death inside a sport-utility vehicle on the West Side.

It was not immediately known whether the gun was used in the killings of Hudson’s mother, brother and nephew. Earlier today, police sent about 100 personnel to the area near 13th Street and Kolin Avenue to search for evidence. The handgun was found around 1:30 p.m. about a block from where the vehicle had been parked along the street.