Timothy O'Bryan, an 8-year-old boy, died after consuming a cyanide-laced Pixie Stick from his trick-or-treat haul.
The coroner found 16 milligrams of cyanide in his stomach and 0.4 milligrams in his blood, which was enough to kill two adults.
Parents across the nation panicked, fearing that other children might also be poisoned by tainted candy, leading to widespread destruction of Halloween stashes.
Police found cyanide in multiple Pixie Stix from both the O'Bryan and Bates households, along with a stapler, knife, and scissors with purple plastic residue and sugar crystals.
O'Bryan sought cyanide to poison his children, as part of a plan to collect life insurance money. He had increased the insurance payouts on his children to $30,000 each.
The jury found him guilty of murder in just 46 minutes and sentenced him to death by lethal injection, which was carried out in 1984.
The incident led to heightened parental caution, with many parents inspecting their children's candy. Trick-or-treating nearly faced extinction in the years following the tragedy.
There have been zero confirmed cases of children being harmed by tainted Halloween candy handed out by strangers, according to a 2015 article on Patch.com.
O'Bryan was deeply in debt and sought to profit from life insurance policies he had taken out on his children, totaling $30,000 per child.
In recent years, Halloween spending has surged, with shoppers spending $12.2 billion on the holiday in 2022, according to USA Today.
The morning after Halloween in 1974, parents nationwide found themselves in the grips of terror as news spread that an 8-year-old boy in Texas had been poisoned by a piece of candy from his trick-or-treat haul.
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