Are you really finnish?
While we can agree the guy is being an idiot and essentially asking for punishment, there is ZERO reason to fire SEVEN bullets at him. You are effectively, at that point, and very intentionally, killing the person.
He is a scrawny dude - no way he could endure a taser, unless he is psyched out on some drugs.
1) Use the taser.
2) If it doesn't work, cause he's fucked up on drugs, at least try to only fire one, two or three bullets. Not seven. It is horrible trigger discipline and is 100% intentional killing.