By Debbie Emery - Breaking Celebrity News Reporter

The man accused of killing Jennifer Hudson’s family was far from discreet in the months leading up to the murders, and even allegedly spilled his deadly desires to a 13-year-old stranger in a park.

The Chicago courtroom heard on Tuesday how William Balfour randomly approached teenager Maria Wilkes in the South Side park in the summer of 2008 and began pouring his heart out to her about his crumbling marriage and how he suspected wife, Julia Hudson, was cheating on him.

As Breaking Celebrity News previously reported, Balfour faces three counts of first-degree murder, aggravated kidnapping and home invasion in the deaths of Jennifer's mother Darnell Hudson Donerson, 57; brother Jason Hudson, 29; and Julia's son Julian King, 7, in October 2008.

Just a few days after their first meeting, Wilkes bumped into Balfour again when he was in the middle of a domestic spat with Julia that soon turned sinister and threatening.

“I heard him tell her if she were to call the police he would kill her and her family,” Wilkes testified in the seventh day of Balfour’s trial, reported the Chicago Sun-Times.

The teenager wasn’t the first witness to suggest that the triple-murder was premedited, as Breaking Celebrity News previously reported last week family friend Robbin Myers told the court that Balfour turned up at his son’s birthday party with a gun and told him, “If I find out that she (Julia) is cheating on me, I’m f***ing her and him up.”

While the testimony is clearly centered around Balfour, the media spotlight has been on his Oscar-winnig sister-in-law, but despite the courtroom rules being bent for her, judge's liaison Irv Miller denied that Jennifer Hudson is getting star treatment.

The Dreamgirls star arrives at the courtroom ev