devon erickson
Devon Michael Erickson (born: September 21, 2000) is an American school shooter and attempted mass murderer who perpetrated the Stem School Highlands Ranch shooting on May 7, 2019, in Douglas County, Colorado alongside with Alec Mckinney at the age of 18.
On September 17, 2021, Erickson was sentenced to life in prison without the possibility of parole, plus 1,282 years.