Hi Park enthusiasts, I'm your host, Delia DeAmbra, and for our story today we're going to the town of West Yellowstone, Montana.

This resort town sits in the southern part of the state and it's considered a gateway to Yellowstone.

Each year millions of people visit this area and not far from where you enter the park is the iconic old faithful geyser.

This geyser was given its name because of its frequent and somewhat predictable eruptions.

Rangers contract the time, height, and length of an eruption to predict when another one will happen.

But unlike old faithful, an eruption of crime in West Yellowstone in November 1990 would be far from predictable.

And it would leave authorities searching for answers and uncovering a diabolical mastermind who was living right under their noses.

This is Park Predators.

A November 9th 1990 Jeremiah Brisbane was headed to PE class at his high school in West Yellowstone.

This day was like any other school day for him. It was mid-morning and heinous friends were ready to head to one of their favorite classes.

Jeremiah really likes this class because the teacher is his dad, Brad Brisbane.

When the bell rings in the hallway, Jeremiah heads to the class but he actually runs into his dad on the way.

Jeremiah notices his dad putting his coat on and it looks like he's about to take off and leave the campus.

But this is weird because it's the morning on a school day. Brad should be going anywhere.

Seeing his dad about to leave, Jeremiah asks him where he's going and Brad tells his son that he just got an unexpected phone call from a friend.

And he has to leave to go help him at a truck stop about an hour away in the town of Belgrade.

Brad tells his son that he'll see him later and he'll be home for dinner and then he walks out of school.

Jeremiah told producers for forensic files that seeing his dad leave to go pick up a friend in the middle of a work day just felt odd.

But he trusted his father and after that sort of just let it go.

He had no idea that that would be the last time he would see his dad again.

A few hours passed and dinner time rolls around and Brad's wife Reenie notices that her husband hasn't come home and he hasn't called the teller where he is.

The only contact she'd had with him that day was earlier that morning and Brad told her pretty much the same thing he told his son.

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