Domino's Pizza store manager brutally attacked with metal bar during robbery caught on surveillance camera br Suspect entered store in Phoenix, Arizona on Tuesday night where he struck manager, Jody Thompson, with metal bar after demanding money br The man is described as 5'10' tall black man in his mid 20s; he fled the scene with bag of cash br Thompson was taken to hospital where he was treated for swelling and bruised head br Police have released video of incident to help find suspect