Williams told investigators he did not intend to hurt the suspect but admitted that he kicked him on the top of the head with the side of his foot, the warrant states. He explains in the document that he was shocked by the condition of the assaulted officer, who was a former academy classmate and a longtime colleague. At first, Williams told police, he did not recognize the officer because his face was "so swollen and bloody," and he "suddenly felt as if I lost my breath."