S. Henry Knocker earned a bachelor’s degree in police science from Seattle University. Retired, he is a thirty-year veteran street cop with a flair for seeing the humorous side of ...ver maisS. Henry Knocker earned a bachelor’s degree in police science from Seattle University. Retired, he is a thirty-year veteran street cop with a flair for seeing the humorous side of policing. Knocker also served four years of active duty with the US Army, including thirteen months in Korea.ver menos