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This is Agent John Walker of the U.S. Marshals Service. When I met with him in 2024, he unfurled this giant map. It was the map of Holly's movements he began working on in the early days of the investigation. And he's kept it all these years later.

This is Agent John Walker of the U.S. Marshals Service. When I met with him in 2024, he unfurled this giant map. It was the map of Holly's movements he began working on in the early days of the investigation. And he's kept it all these years later.

This is Agent John Walker of the U.S. Marshals Service. When I met with him in 2024, he unfurled this giant map. It was the map of Holly's movements he began working on in the early days of the investigation. And he's kept it all these years later.

The map shows the area around the Bobo property with cell towers dotted along the woods. Agent Walker went out and bought an exact replica of Holly's Samsung Solstice cell phone and drove around the area with a representative from AT&T.

The map shows the area around the Bobo property with cell towers dotted along the woods. Agent Walker went out and bought an exact replica of Holly's Samsung Solstice cell phone and drove around the area with a representative from AT&T.

The map shows the area around the Bobo property with cell towers dotted along the woods. Agent Walker went out and bought an exact replica of Holly's Samsung Solstice cell phone and drove around the area with a representative from AT&T.

Holly's phone appears to have left her home at around 8 a.m. Then the cell phone started moving at a fast pace. Agent Walker believes it was in a vehicle.

Holly's phone appears to have left her home at around 8 a.m. Then the cell phone started moving at a fast pace. Agent Walker believes it was in a vehicle.

Holly's phone appears to have left her home at around 8 a.m. Then the cell phone started moving at a fast pace. Agent Walker believes it was in a vehicle.

Holly's phone heads towards the Interstate 40 highway, arriving at 8.26 a.m. The cell phone appeared to stop moving. It stayed put for about a half hour. Then it turned east onto Interstate 40. A little after 9 a.m., it turned right back into those woods and kept traveling south until it got to a small creek on Gooch Road in Parsons. That's when it stopped responding to pings at around 9.25 a.m.

Holly's phone heads towards the Interstate 40 highway, arriving at 8.26 a.m. The cell phone appeared to stop moving. It stayed put for about a half hour. Then it turned east onto Interstate 40. A little after 9 a.m., it turned right back into those woods and kept traveling south until it got to a small creek on Gooch Road in Parsons. That's when it stopped responding to pings at around 9.25 a.m.

Holly's phone heads towards the Interstate 40 highway, arriving at 8.26 a.m. The cell phone appeared to stop moving. It stayed put for about a half hour. Then it turned east onto Interstate 40. A little after 9 a.m., it turned right back into those woods and kept traveling south until it got to a small creek on Gooch Road in Parsons. That's when it stopped responding to pings at around 9.25 a.m.

Volunteers who later searched the route found some of Holly's items, including her cell phone.

Volunteers who later searched the route found some of Holly's items, including her cell phone.

Volunteers who later searched the route found some of Holly's items, including her cell phone.

Agent Dyka says the map offers another clue that whoever took Holly must have known the area really well.

Agent Dyka says the map offers another clue that whoever took Holly must have known the area really well.

Agent Dyka says the map offers another clue that whoever took Holly must have known the area really well.

Agent Dykus started drawing up a list of potential leads. Within the first day, investigators identified two dozen sex offenders in the area and went to check on them. But as police cast a wide net, they began to wonder if their suspect was even closer to home.

Agent Dykus started drawing up a list of potential leads. Within the first day, investigators identified two dozen sex offenders in the area and went to check on them. But as police cast a wide net, they began to wonder if their suspect was even closer to home.