PHILADELPHIA—It's not the kind of greeting card you'd ever want to get.

Philadelphia police say a man tried to rob a downtown Hallmark store by handing the cashier a card containing the handwritten message, "Give me all the money or I will kill you."

The store cashier was apparently unimpressed with the would-be robber's hostile prose. Police said the person called over another store employee, and the suspect ran off without any money.

The police department has released surveillance video allegedly capturing images of the suspect in the Jan. 24 robbery. They ask anyone who recognizes him to contact authorities.