An 18-year-old woman suspected of making threats to Denver-area schools has been found dead, the FBI says.
Sol Pais was reportedly obsessed with the 1999 Columbine high school massacre, in which two teenagers murdered 12 students and a teacher.
The alleged threat led to school closures, affecting more than 400,000 students, and a manhunt for the woman.
She allegedly travelled to the state and bought a shotgun ahead of the 20th anniversary of the Columbine shooting.
Jefferson County Sheriff Jeff Shrader said on Wednesday that she died from an apparent self-inflicted gunshot wound, the Associated Press reported.
The FBI earlier tweeted there was no longer a threat to the community and the suspect is deceased.
Officials said at a news conference that local schools would reopen on Thursday and events marking the anniversary of the 1999 shooting would continue on Saturday.
Nearly 30 armed officers swarm the woods near the Echo Park Campground in the Arapaho National Forest, CBS News reports.
The Echo Lake Lodge, nearby to where she was reportedly found, does not open until late May due to weather.
She travelled to Denver from Miami on Monday night and purchased a pump-action shotgun and ammunition, the Jefferson County Sheriff’s Office said.
Police had considered her armed and extremely dangerous.
Witnesses told local media that she was seen running naked and armed with a gun in the area earlier on Wednesday
A tragedy that cuts deep
Nada Tawfik, BBC News, Denver
Anniversaries can be difficult for survivors and the wider community, often triggering traumatic memories.
Littleton was already on high alert because they’ve faced threats in the past, and this was another scary reminder that the mass shooting will perhaps forever affect life in this city. One Columbine survivor told me that when she heard the news, she questioned her safety and took a different route home in a moment of panic.
Today, schools are closed, empty, and deemed unsafe. John McDonald is in charge of security for the school district that includes Columbine. He told me he was angry that as a country, Americans had done nothing but point fingers for the last 20 years, and as a result children weren’t just dead, they were unsafe to attend school.
Columbine isn’t even among the 10 deadliest mass shootings in this country any more. Yet, it is still a tragedy that cuts deep and becomes more painful with each reminder that nothing has changed.
The suspect’s family had urged her to turn herself in as authorities launched a manhunt.
“It’s like a bad dream. We don’t know. We don’t have any ideas,” her father told CBS News in Miami.
Police say Pais made statements to friends and family and had posted online about her fascination with the Columbine shooting.
According to the news outlet, more than 130 schools in and around Denver had closed as officials searched for her.