David Murray, director of the Statistical Assessment Service and co-author of It Ain't Necessarily So: How Media Make and Unmake the Scientific Picture of Reality, notes that there have been only 76 reports of any kind of tampering since 1958, almost all of which were fraudulent or mistaken. Of the three reported fatalities, one was from a girl's fatal seizure due to a congenital heart disorder while she was out trick-or-treating. Of the two other children, one's father poisoned the child and blamed tainted candy in an attempt to conceal the crime, and the other child ate the father's heroin stash.