An “evil” gas station worker pumped 24 bullets into an off-duty Florida police officer — then blamed it “having a bad day,” authorities said as they charged him with murder.

Edgewater Police Officer David Jewell, a 45-year-old dad, was shot in the head multiple times at point-blank range in a Circle K gas station in Ormond-by-the-Sea on Monday afternoon, Volusia County sheriff’s officials said.

Chilling surveillance footage shows the suspect — identified by cops as gas station employee Eduardo Labrada Machado — leaving the store after Jewell walked in and retrieving a jacket from his car.

Machado, a 24-year-old green card holder, is then seen returning to the store, pulling out his handgun — and shooting him multiple times in the head, killing him, the sheriff’s office said. 3

“Fi

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