"Colorado Police and FBI Investigate Co-Conspirator in Mariemont HS Shooting Plot"

The FBI is collaborating with Colorado police to investigate the co-conspirator in the school shooting plot at Mariemont High School, where a 14-year-old was charged with conspiracy to commit aggravated murder after planning a "mass casualty event" with an out-of-state adult. The adult, believed to be between 22-24 years old, and the teen discussed plans to use firearms and potentially gas in the attack. The plot was foiled after another student tipped off the police, and the 14-year-old is facing potential transfer to adult court and life in prison if convicted.