This looked like the diviest dive in the history of dives to me at first. But when I paid attention to the way his legs bent and the look on his face from a different angle, he was definitely rocked. It looked like he was ~60% conscious, but that split-second moment of being off-balance was all Jamahal needed to close the show.
Looks like Walker's going to join the shadow realm and be remembered as the man with a head made of fucking construction paper, just like Amir Khan in the boxing world. Walker's durability is perhaps worse than Khan's; just getting tapped on the temple was enough to make his brain freak out a bit.
Johnny walker does a silly.mp4
(credit to @japa_mma for the clip)
EDIT: Changed 80% to ~60% conscious. Sorry man, I'm having such a hard time believing that a 6 ft 5 behemoth can take a hit to the temple and immediately malfunction. I gotta watch the full thing...