I personally would like to see the perps beheaded and their heads stuck on poles after incidents like this.
It provides comfort tor the populace and a warning to all who partake in this venue.
It is a time-honored practice afterall!
Covered in pig blood with pig entrails stuff in their mouths. It's way past time to go medieval on these monsters.
As I said on another thread, the only way to defeat these scum is to deny them entry to paradise. Time to do some research in the Koran and Hidith for loopholes in the martyr syndrome.