The Owner of the Company....a very experienced Pilot....stated in the Video....that he saw the Tail Rotor was not turning prior to the hard landing.
I shall accept his statement to be accurate.
As to when the TRGB departed will be determined by the NTSB Accident Investigation I assume.
Glad no one was seriously injured or killed in this....the Aircraft can be replaced.
https://www.king5.com/article/news/l.../281-558259259