Keith Palmer was a police officer of the Metropolitan Police Service. ^[undefined]

He was a member of the parliamentary and diplomatic protection command with 15 years of service.

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On March 22, 2017, PC Palmer died from stab wounds in the Westminster Terrorist Attack of March 2017. ^{[undefined] [undefined]}

Forty other people were injured after a car struck pedestrians on nearby Westminster Bridge, before it crashed. ^{[undefined] [undefined]} After the car crashed into the railings of the Houses of Parliament, a man armed with a knife continued the attack and tried to enter the building. ^{[undefined] [undefined]}