so the shooter was most likely radicalized by all the left wing rhetoric claiming Trump is hitler, Trump is a fascist, Trump is going to gas the trans people, etc etc. we saw politicians like Nancy pelosi calling for uprisings, staffers insisting that people "take one for the team" and shoot the president.
Now that someone has taken action on this violent rhetoric, could Trump sue for damages against Nancy Pelosi and her ilk? would he have a case?
EDIT: by just world, I mean in America where the justices actually enforce the law.
Considering the first amendment does not actually say "except violent rhetoric and threats", no.
The framers never envisioned a country where organized propaganda operations on the public consisting of lies and hateful rhetoric would exist, let alone be successful, so it serves as an example of why we can't have nice things.
We need a better populace.