Robert Zimmerman, whose younger brother George was acquitted for his role in the death of 17-year-old Trayvon Martin, told The Huffington Post on Friday that a civil suit might lead to unpleasant facts coming to light about the Florida teenager's family.

"A myriad of things that were off-limits in a criminal trial would come into play in a civil case," Robert Zimmerman said in an email to the Post. "Specifically, things that might not be very flattering to Trayvon or his family."

The report comes one day after a member of the six-woman jury that acquitted George Zimmerman on second-degree murder charges told ABC News that the former neighborhood watch captain "got away with murder," but that there was not enough evidence to find him guility on July 13.

"And at the end of the day, he's going to have a lot of questions and answers he has to deal with," Juror B29 told ABC of George Zimmerman.

While critics of the verdict have called for the younger Zimmerman to be retried in a civil lawsuit, Robert Zimmerman told the Post he did not expect Martin's family to go that route, saying that his brother's acquittal would support his claim to civil immunity under Florida's "stand your ground" law, which allows for use of deadly force in a life-threatening situation. George Zimmerman's attorneys argued that Martin was beating him when their client shot and killed him in February 2012.

On Friday, Martin's mother, Sybrina Fulton, spoke out against the law during a speech to the National Urban League, saying, "Please use my tragedy, please use my broken heart to say to yourself we cannot let this happen to anybody else’s child."