Rey Rivera moved to Baltimore with his wife to work for Stansberry & Associates. On May 16th, 2006, Rey took a call and left the house in a hurry. His body was discovered in the Belvedere hotel and some people believe that he jumped off the roof, but the scene looks very staged. This case is currently unsolved.
Website: Drinking The Cool Aid
Resources:
What happened to Rey Rivera of Netflix’s Unsolved Mysteries? – The Sun
Unsolved Mysteries co-creator gives updates on Rey Rivera & two other cases | EW.com
Inside The Unsolved Mystery Of Rey Rivera's Death (allthatsinteresting.com)
Netflix Unsolved Mysteries: Mystery on the Rooftop Season one, episode one
What Happened to Rey Rivera? | Updates to Rey Rivera Disappearance (marieclaire.com)
Unsolved Mysteries update: Second caller revealed in Rey Rivera case (netflixlife.com)
Everything Unsolved Mysteries Leaves Out About Frank Porter Stansberry (screenrant.com)
What Is Freemason Society? Did it Cause Rey Riveria's Death? (thecinemaholic.com)