Man with walker, armed with knife caught on camera robbing bank

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BOYNTON BEACH, Fla. —

Police in Boynton Beach arrested a bank robber armed with a knife and who was using a walker.

Investigators said surveillance video shows 78-year-old Russell Cooper threatening a bank employee with a small knife and demanding cash.

According to the Palm Beach Post, after receiving the money, Cooper told the bank manager that he was either going to be his hostage or have his throat “slit,” the report said. The bank manager later told police he was in fear for his life and escorted Cooper out the front door.

Police were waiting for him outside after the robbery, authorities said.

Authorities said officers used a stun gun on Cooper when he refused to drop the knife.

He was arrested on charges of bank robbery and kidnapping.