[pjc50]

Hearts and minds are not fixed. People can be recruited and radicalised. For every one person who'd do this stuff on their own there's a hundred who do it because they think it's popular.

> the paper trail can be long and damning - making it much easier to convict them

This usually comes out after they've carried out the mass shooting.

[archie2]

Unfortunately, you can't arrest someone that hasn't committed a crime.