Is It Clint or Bryan Shaffer?

We're taking a break for the holiday so we wanted to feature an episode from our first season you may not have heard yet. We'll be back with a new episode next week!

Columbus Ohio 2006, 1:15 am: 27-year-old medical student Brian Shaffer is seen on a surveillance camera walking into a bar with two friends. But he never comes back out. Somehow, in a bar packed with potential witnesses, Brian vanished into thin air seemingly INSIDE the bar. 

Then in New York city in 2011, 22-year-old Ian Burnet, visiting friends to celebrate New Year's Eve gets onto a crowded subway car and is never seen again. How is it possible for someone to vanish without a trace from places packed with people and security cameras? What happened? Where did they go?