The 2001 rundown came immediately to mind - I didn’t have to search hard for it at all because my brother was a UCSB student at the time. It probably didn’t hit national news, but was pretty big CA news when it happened. The current manifesto even planned to steal his dad’s SUV in order to run more people down. Sadly enough I read about people purposefully running down others quite often (including many bicyclists), I only pointed out this one because of the many similarities.
Also, I wasn’t trying to blame or bash immigrants, but I think that when many people point to other countries that don’t have the same societal problems much of it stems from them having a single dominant/homogenous cultural and racial makeup, particularly examples like Japan and Northern Europe. People seem to act and operate in a more orderly fashion and have more similar standards of living which we won’t/don’t have in the US, and I don’t expect us to have. I’m very glad to live in a country that believes in ethos and not bloodline for citizenship, but it does create more complications for us (along with the crazy history of racial discrimination and its lasting effects)