The trial begins this week in a 55-year-old murder case.
Jack McCullough is accused of abducting and killing 7-year-old Maria Ridulph in the town of Sycamore in 1957.
The key witness could be a 63-year-old woman who was the girl’s playmate and the last person to see her alive after the two girls were approached by a man who called himself Johnny.
McCullough was initially a suspect but had an alibi, which later fell apart when an ex-girlfriend came forward and called his story into question.