In real life, 48-year-old Neil McCauley was released from prison in 1962 after completing a 25-year sentence. With Detective Adamson handling the case, he had doubts about coming to terms with the fact that McCauley might be a changed man and would not resort to crimes again. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.