On April 13, 1973, the world was shocked when a man named David McGreavy, also known as "The Monster of Worcester," was arrested after the brutal murders of three children. Known to have a serious alcohol problem, the 21-year-old ended up heavily intoxicated while watching 9-month-old Samantha, 2-year-old Dawn, and 4-year-old Paul, as their parents were out for an hour at a local pub.