ThunderHorse
Verified Military
The Wisconsin Sikh Temple Shooting, Charleston Church shooting, the Portland train attack, the Charlottesville car attack, the Synagouge shootings in Pennsylvania and Cali, the El Paso shooting....
ETA: I'm not including anything involving sovereign citizens(2014 Vegas shooting) or militia movements(IE: OKC bombing), but those are usually placed under the banner of "right wing".
If you're talking about the 2015 San Bernardino Regional Center attack, that was a radicalized Muslim, the wife was Pakistani and he met her either on a trip to the ME or online. Unless you're thinking of something different?

