This is a guy name Zach Ruffo demonstrating all types of cool speed bag punching combinations, including some that combine elbow strikes and punches.

Law Enforcement Training officer Lieutenant Kevin Dillon teaches simple but effective defenses against an attacker armed with a stick or club in this video.

Keith Livingston teaches the rear head throw used by police subdue a resisting assailant or suspect. You could also use this to come to the aid of person who is being threatened or assaulted.