<p>This image from the 1957 Sycamore (Ill.) High School yearbook shows John Tessier, now believed to be known as Jack Daniel McCullough.</p>
July 14, 2011
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July 14, 2011 9 p.m.
A memory for murder?
Prosecutors face daunting task in 1957 case
SYCAMORE, Ill. - Over the years, evidence decays or passes through so many hands it's rendered useless. Murder weapons disappear, and witnesses' memories dim or are carried to the grave.