Host Eva Pilgrim

Many wore bright pink shirts or pink ribbons on their jackets since it was Holly's favorite color and the color she was last seen wearing. The Jackson Sun recorded a highway patrol officer addressing the crowd.

Many wore bright pink shirts or pink ribbons on their jackets since it was Holly's favorite color and the color she was last seen wearing. The Jackson Sun recorded a highway patrol officer addressing the crowd.

Her parents, who were clearly distraught and shell-shocked, had gone before news cameras from local stations like WREG, begging for Holly's return. This is her father, Dana Bobo, and her mother, Karen Bobo, the day after she disappeared.

Her parents, who were clearly distraught and shell-shocked, had gone before news cameras from local stations like WREG, begging for Holly's return. This is her father, Dana Bobo, and her mother, Karen Bobo, the day after she disappeared.

As the days dragged on, the thousands of volunteers and law enforcement who had poured into Tiny Parsons weren't just looking for Holly. They were searching for something, anything that could point to where she was.

As the days dragged on, the thousands of volunteers and law enforcement who had poured into Tiny Parsons weren't just looking for Holly. They were searching for something, anything that could point to where she was.

With Holly still missing and no sign of a suspect, that hope was turning to despair. Law enforcement officials began to change their approach. Inundated with leads that went nowhere, they asked the public not to only look in the woods, but to search among their own.

With Holly still missing and no sign of a suspect, that hope was turning to despair. Law enforcement officials began to change their approach. Inundated with leads that went nowhere, they asked the public not to only look in the woods, but to search among their own.

I'm ABC News Senior National Correspondent Eva Pilgrim. From ABC Audio and 2020, this is What Happened to Holly Bobo. One of the things that stood out about this case from the very beginning is how quickly the town and police came together to search for Holly.

I'm ABC News Senior National Correspondent Eva Pilgrim. From ABC Audio and 2020, this is What Happened to Holly Bobo. One of the things that stood out about this case from the very beginning is how quickly the town and police came together to search for Holly.

This is former agent Terry Dykus of the Tennessee Bureau of Investigation speaking to ABC News a few years after Holly's disappearance.

This is former agent Terry Dykus of the Tennessee Bureau of Investigation speaking to ABC News a few years after Holly's disappearance.

The Tennessee Bureau of Investigation is an independent agency charged with investigating high-profile crimes in the state. Larger cities like Memphis or Nashville have their own homicide units and don't always need TBI's help. But Decatur County is one of the most sparsely populated regions in the state with just under 12,000 people.

The Tennessee Bureau of Investigation is an independent agency charged with investigating high-profile crimes in the state. Larger cities like Memphis or Nashville have their own homicide units and don't always need TBI's help. But Decatur County is one of the most sparsely populated regions in the state with just under 12,000 people.

Agent Dykus was the lead agent on the case. Luckily, he knew Decatur County pretty well. But he says he's never encountered a crime quite like this. It wasn't just TBI that responded to the scene that first day. The Decatur County Sheriff's Office, the Henderson County Sheriff's Office, and the nearby Lexington PD were all there. So were agents with the FBI and U.S.

Agent Dykus was the lead agent on the case. Luckily, he knew Decatur County pretty well. But he says he's never encountered a crime quite like this. It wasn't just TBI that responded to the scene that first day. The Decatur County Sheriff's Office, the Henderson County Sheriff's Office, and the nearby Lexington PD were all there. So were agents with the FBI and U.S.

Marshals Service, trained in the art of finding people on the run, like Holly's kidnapper. The Tennessee Highway Patrol sent a helicopter to fly overhead. Officials from FEMA helped set up a command post. Many agencies brought dogs along with them to help with the search. Some were given one of Holly's shirts and sent through the woods to pick up her scent.

Marshals Service, trained in the art of finding people on the run, like Holly's kidnapper. The Tennessee Highway Patrol sent a helicopter to fly overhead. Officials from FEMA helped set up a command post. Many agencies brought dogs along with them to help with the search. Some were given one of Holly's shirts and sent through the woods to pick up her scent.

In the first few hours, hundreds of volunteers showed up at the Bobo residence, on their ATVs, on horseback, on foot, to search for Holly. As the days went on, divers scoped out the creek and the Tennessee River just a few miles away. You'd think with this huge, rather immediate effort, someone would have figured out what happened to Holly pretty quickly. But this was no ordinary crime scene.

In the first few hours, hundreds of volunteers showed up at the Bobo residence, on their ATVs, on horseback, on foot, to search for Holly. As the days went on, divers scoped out the creek and the Tennessee River just a few miles away. You'd think with this huge, rather immediate effort, someone would have figured out what happened to Holly pretty quickly. But this was no ordinary crime scene.