Watch veteran Josh Emmett put the lights out on Bryce Mitchell in one of the scariest knockouts in UFC history.

Tonight's UFC Vegas 105 fight card takes place on April 5, at the UFC Apex in Las Vegas. Josh Emmett Vs. Lerone Murphy serves as the UFC Fight Night main event.

Gian Villante may have knocked out Anthony Perosh with little trouble at UFC 193, but the light heavyweight isn't thrilled ...