The Clear Creek County Coroner's office released its final report Wednesday confirming that an 18-year-old Florida woman who the FBI considered to be a threat to Colorado schools died by a self-inflicted gunshot wound.
Sol Pais traveled from Miami to Denver in April ahead of the the 20th anniversary of the Columbine shooting. She was allegedly obsessed with the attack -- which led the FBI and local law enforcement to issue a public warning about her arrival in Colorado.
When Pais arrived in Denver she purchased a pump-action shotgun and ammunition. The coroner's initial report estimated that she died on April 15, the day she arrived.
Dozens of school districts in Colorado tightened security on April 16 and closed April 17 out of precaution. All classes and extracurricular activities for about a half-million students were canceled.
Pais' body was discovered on April 17 in the foothills west of Denver.
The report said there was no sign of drugs or alcohol in her system.