Sounds very good. There are a lot of options:
1. Less wall to wall media mass shooting pornography for ratings.
2. Hardening the targets. Fences, walls, gates, cameras, armed personnel.
3. Competent law enforcement, wiht specialized training and units to address mass shootings, both before and during the assault.
4. “Red Flag” laws.
5. Potential victim training. Fight back, escape plans, etc.