Shooting cannons is fun. Building them is a kick in the butt when done safely. I'm sure this guy is ready to kill himself over his mis judgement. I feel for the guy. His life changed in an instant for a few minutes of idiocy.
Who among us hasn't done idiotic things at one time or another? I was a pretty experimental type of kid when left on my own at Grandmas summer place in the Catskills.
We can only hope his misfortune will be a lesson. His girlfriend is gone, she has no pain. He has to live with this, or not!
He will probably also lose his daughter over this and even if he doesn't, there will always be that between them.
KK