NATIONWIDE — A Florida woman who prompted hundreds of Colorado schools to close Wednesday after authorities said she made threats against Columbine High School has been found dead, the FBI in Denver tweeted Wednesday afternoon.

Sol Pais allegedly made threats against Columbine High School

FBI says she traveled from Florida, bought shotgun, ammo

Hundreds of schools were closed Wednesday across Colorado

20th anniversary of Columbine mass shooting draws near

While the CNN-affiliate KCNC in Denver reported the development, the FBI issued a tweet, confirming that Sol Pais, 18, is dead.

We can confirm that Sol Pais is deceased. We are grateful to everyone who submitted tips and to all our law enforcement partners for their efforts in keeping our community safe. — FBI Denver (@FBIDenver) April 17, 2019

The FBI said Pais traveled from Miami to Colorado on Monday night, and somewhere along her trip, investigators say she made threats against Columbine High School, the site of a mass shooting almost 20 years ago.

Schools Closed Wednesday, April 17

We apologize for notifying families late at night, however we want to share info as soon as we have it. The following message is being sent to families/staff via phone, text, email. May take some time to cycle through all recipients. See thread. pic.twitter.com/MAPhu5eDy6 — Jeffco Public Schools (@JeffcoSchoolsCo) April 17, 2019

The FBI said the threats were seen as credible, because Pais was obsessed with Columbine shooters Eric Harris and Dylan Klebold.

"She departed the airport and went to a store where she did procure a weapon. She obtained a pump-action shotgun and ammunition," said Dean Phillips, a FBI special agent in charge of the Denver field office.

The FBI had described her as armed and dangerous.

If you have tips regarding Sol Pais or her whereabouts, please email DenverFBITips@fbi.gov or call 303-630-6227. https://t.co/FcaTOJeCap — FBI Denver (@FBIDenver) April 17, 2019

According to a CNN affiliate in Miami, Pais' family had asked her to turn herself in.

The 20th anniversary of the Columbine High School shooting, which took the lives of 12 students and one teacher, is just three days away.

The Jefferson County Sheriff's Office in Colorado described Pais as a white woman, 5-foot, 5-inches tall with brown hair. She was last seen in a black T-shirt, camouflage pants, and black boots.



She was spotted in the Jefferson County foothills, the Sheriff's Office said..