One of Frank's former instructors is on this show

This video is n ot suitable for children.
It is graphic in places, so be ready if you choose to watch it.
The Soviet Spetsnaz, Sonny Puzikas, is one of my former martial arts instructors.
He is one of the deadliest people I ever met.
Here's the link
He is the guy I pracgticed Russian SDystema with several years ago.