This episode is a group effort.

You sent us your hometown murders,

disappearances you grew up hearing about,

and one UFO report that refuses to die.

And we verified the details, dug the sources,

and followed the timelines to the last clean point. So if there's an answer out there, maybe we find it together.

Welcome to scary mysteries. Here's cases you asked for.

Five chilling unsolved mysteries we can't explain.

Number five, the man who erased himself.

He arrived like a man stepping out of a life he no longer wanted.

Tall, thin, silver-haired, black leather jacket with two small bags.

He told the world his name was Peter Bergman. It wasn't. And that was the point.

On June 12th of 2009, Cameras in Derry caught him asking for a bus to Sligo on Ireland's northwest coast.

Two and a half hours later, while he checked into the Sligo City Hotel, paying

cash writing Peter Bergman and a Vienna address that didn't exist. No ID, no questions, and from

that moment, what followed looked less like a holiday and more like a plan.

Over the next three days, he left the hotel again and again,

carrying a purple plastic bag that appeared full and returned without it.

He chose routes that slipped past CCTV,

never seen dumping the contents and never seen meeting anyone.

On Saturday, he went to the post office and bought stamps, maybe to send letters, but maybe to leave

a trail that said letters without actually sending any. On Sunday, he took a taxi to Rose's Point, a quiet beach where he asked about swimming there,

...