Yea I dunno what rogan is on, he saw the hit himself during the replay - 1 was blatantly to the back of the head.
Is that 1 hit what really ended it? Nah... But dude got too excited and let one slip when the ref was watching for it after a verbal warning apparently.
Yup. Rogan is tripping. I counted 6 blows to the back of the head. He didn't have to throw that many punches to win. The fight was his, but he got carried away. Notice how "sweet" and dignified the Brazilian fighters are. They have respect and don't do all the trash talking. Even the guy who got disqualified didn't whine about it.