This is the Mexico City wrestler named Danger; there's also a Guadalajara area Danger
Danger is started out as masked CMLL opening match tecnico. He's was a younger wrestler, working early matches on shows.
Danger was dropped from CMLL in May of 2007. Shortly prior, a video surfaced on YouTube, shot in the locker room of a CMLL show and revealing the unmasked of CMLL wrestlers (most notably Mistico.) The rumors at the time said Danger was responsible for the video and he'd been blacklisted as a result. His father was dropped from CMLL around the same time, which may have been related.
Danger resurfaced briefly on AAA TV in 2008 for one match, but vanished back to the indies. He's believed to now be under the Pendulo mask in IWRG, probably looking for a fresh start.