So several weeks or months from now, we'll probably get a postmortem that looks like this:
1. Batshit crazy dude.
2. Ignored or insufficiently investigated death threats.
3. Filling gas in a container instead of a car did not arise suspicion.
4. No or poor building security.
5. No or poor fire suppression.
6. Roof door was locked.
7. No offsite backups of digital data.