Jack McCullough, released from prison last Friday after the DeKalb County State's Attorney concluded he was wrongly convicted in the 1957 killing of a schoolgirl, says he intends to sue Illinois.
McCullough spoke to The Associated Press on Sunday, two days after a judge vacated his 2012 conviction in the slaying of 7-year-old Maria Ridulph in Sycamore.
He says about his imprisonment: "They didn't just punish me - they punished my whole family."
McCullough spoke from an acquaintance's home outside Sycamore. He says that, while he was behind bars, he wrote letters to state officials and the president pleading for them to intervene.
He says those messages went unanswered.
Current DeKalb County State's Attorney Richard Schmack has called the investigation of McCullough deeply flawed.
McCullough says investigators wanted to boast they'd solved one of the oldest cold cases in the country to go to trial.
