Shocking surveillance footage captured the moment a raging elderly woman flew into a frenzy at Tim Hortons workers before having a fatal heart attack.
Anita Grayson, 75, was seen berating young workers at the coffee shop in Fort Wayne, Indiana, on May 13, as she complained about a mistake in her drive-thru order.
The encounter escalated after a 20-year-old employee told Grayson to leave, which police say led her to 'forcefully' shove the staff member and another employee.
Grayson then struck one of the workers in the face and ripped out a lock of her hair, police say.
In response, a worker swung her arms wildly at the elderly woman and knocked her over, before she stood up and was brought a cup of water by the store manager to calm down.
Police say that Grayson was unresponsive when officers arrived ten minutes later and she was pronounced dead from a heart attack after receiving medical attention.
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