Unfortunately, while watching the video, he trying tazing the officer before he fired his weapon, It would have been even worse IMO if he shot the man before he tried to tazer the officer while running, even though he committed several felonies and the officers according to the law (from what I read) could use deadly force. However, after the tazer was discharged, the man no longer had a weapon that was of any use, and the officers could have pursued him, called for backup, overpowering him to arrest him and take him into custody.