Haynie family murders
| Haynie family murders | |
|---|---|
| Location | Grantsville, Utah, United States |
| Date | January 17, 2020 c. 1:00 – c. 6:15 p.m. (MST) |
| Target | Family members |
Attack type | Mass murder, mass shooting, familicide |
| Weapons | Handgun |
| Deaths | 4 |
| Injured | 1 |
| Perpetrator | Colin Jeffrey "CJ" Haynie |
On January 17, 2020, 16-year-old Colin Jeffrey "CJ" Haynie shot and killed his mother and three siblings and injured his father in Grantsville, Utah. The incident was the deadliest mass shooting in Utah since the 2007 Trolley Square shooting that killed six including the gunman, and Grantsville's first homicide in nearly 20 years.