Dallas Police Department – Wikipedia

Killing of Botham Jean. On September 6, 2018, off-duty Dallas patrol officer Amber Guyger entered the apartment of Botham Jean and shot and killed him. Guyger said that she had entered the apartment believing it was her own and shot Jean believing he was a burglar. She then called 911. Jean was taken to a nearby hospital, where he died from his wound.

https://en.wikipedia.org/wiki/Botham_Jean