I see your point, I should have been more erudite.Really? Even when they are clearly defending themselves from people who are intent on hurting or killing them? Or with that same intent toward others?
In this particular situation I don't believe they can justify having him on the ground with a knee on his neck for 8 minutes, regardless of what he did or didn't do. It's a clear case of abusive force and manslaughter.
But to say police are never justified in taking another life under any circumstances is just not realistic.
Of course, when a cops life is threatened, and a Taser does no good, than a PO should use deadly force so protect himself or others.
I should have worded it differently.