Take a look on the images and the video he made:
He lay on his bed, holding a loaded gun.
At first attempt, he pointed the gun slightly on his head and pulled the trigger. Luckily, the gun hit the empty barrel.
On his second attempt, unfortunately, the bullet got off and hit his head!
It was not his time yet. Good thing he survived.
What remained is the hairless part of his head previously stitched.