The phrase for police is being in fear for your life.
If you are trying to hold somebody and handcuff them while someone is choking and trying to kill you, good luck.
Somehow the handcuffs were so badly damaged that they had to be cut off Dejuan (after he was dead).
How can this happen unless the Deputy had to fight for his life?
Good news is that there is video, but the IDIOT MEDIA will edit so that it looks like the Deputy so totally in control (as he was being choked).