The Mass Killer Checklist is progressing nicely.

Shooter known to authorities. ✔
Shooter known to have mental issues. ✔
Shooter warned about engaging in future acts of violence. ✔
All info about this particular shooter released within 4 hours of event. ✔

It is like there is a script that must be faithfully followed.

PS: The 3-week Copycat warning is now running.

Prepare accordingly.