He didn’t just “punch him from behind”.

This guy had a pipe/steel rod hidden inside his sleeve and he wailed the unsuspecting trumpsupporter in the side of his head.

Initially when I watched the footage I thought “that’s a curious angle for a haymaker blindside punch...and Wow was it ever effective.” The next morning I heard he had a steel rod or steel pipe hidden up his sleeve and it made much more sense. The victim was knocked out “cold” the instant the attackers’ arm made contact with his head.

What an animal.