STEM School Highlands Ranch shooting

2019 STEM School Highlands Ranch shooting
Erickson and McKinney in the hallway just outside classroom 107
Highlands Ranch
Highlands Ranch (Colorado)
Highlands Ranch
Highlands Ranch (the United States)
Location39°33′22″N 104°59′52″W / 39.5560°N 104.9979°W / 39.5560; -104.9979
Highlands Ranch, Colorado, U.S.
DateMay 7, 2019 (2019-05-07)
1:53 pm (MDT (UTC−6))
TargetStudents at STEM School Highlands Ranch
Attack type
Mass shooting, school shooting
Weapons
Deaths1 (Kendrick Castillo)
Injured8 (6 by the perpetrators, 2 by private contractor security)
PerpetratorsAlec McKinney
Devon Erickson
DefendersKendrick Castillo
Joshua Jones
Brendan Bialy
Motive

On May 7, 2019, a school shooting occurred at STEM School Highlands Ranch, a charter school located in Douglas County, Colorado, United States, in the Denver suburb of Highlands Ranch. One student, Kendrick Castillo, was killed and eight others were injured. Two students, 16-year-old Alec McKinney and 18-year-old Devon Erickson, were convicted on dozens of charges and sentenced to life imprisonment.