Overview

• Diego Barajas Medina, a 20-year-old man, was found dead at Glenwood Caverns Adventure Park with multiple firearms and explosives, prompting an investigation into a potential mass shooting plot.
• Authorities believe Medina, who was wearing a black ballistic vest and helmet, broke into the amusement park Friday night and killed himself there early Saturday.
• Medina's brother David claimed that Medina had a fascination with law enforcement and owned guns and a vest because he aspired to become an officer.
• Garfield County Sheriff Lou Vallario said Medina could have caused significant damage at the adventure park had he chosen to use his weapons.
• Investigators found a message near Medina's body reading, 'I am not a killer, I just wanted to get into the caves', though it's not confirmed if Medina wrote it.
• Medina's weapons were identified as untraceable 'ghost guns', highlighting an issue with unserialized, home-assembled firearms.