Sorry to say, it’s Greek. My guess, he was not born here as the name is very ethnic. Very very rare to have Greek Americans born here who go off the deep end. More likely he was born in Cypress, etc. Or he was adopted.
Any chance he could be a Bosnian Muslim. I know Clinton and the democrats imported thousands of them to the U.S. during the 1990's.
That’s why he felt like an outcast? He was an immigrant. Trump hated him.
Friend has a relative that was shot in this incident. He said the victim/student is recovering from a possible broken ankle and pellets lodged in his face. Also said both the victim and shooter attended school together, all the way back to elementary school.
There are plenty of others in the US with that name, so he certainly could have been born and raised here. http://forebears.io/surnames/pagourtzis