Of course not! He's Amish with a funny name, in Amish circles, that is. A saintly fellow, I tell ya! (extra heavy /S)
I checked the official ISIS on-line Jihadi registry and this guy’s name is not on the list, which is updated four times a day and cross-referenced with the Al-Queda registry in Kabul.
Therefore he was clearly just a mentally ill kid upset by his employment situation.
He might have been upset by Donald Trump’s rhetoric, but not in an Islamic terrorist sort of way.