This is definitely my question I want to be a officer when I grow up, I'm studying many aspects of it.
there's no specific case in mind but there were these too officers that tried to negotiate in a hostage situation in Dallas Texas and the hostage tooker told the officers to put their gun on the floor as he has another officer hostage, they do it and the officer gets shot in his face and shoots the other officers and they were injured, it was deadly force due to it being a dang hostage situation