As I said, you can object to the terminology "murder", but that is as far as the objections can go.
Of course trials at that time and place were anything but fair, but we don't generally refer to those state-run executions as lynchings (perhaps we should).
And how is any of that not torture? Seems like your definition of torture is just "doesn't result in death."
Anyway torture, simply defined, is an act causing extreme pain in someone. And not just for five seconds. Hanging-done-wrong can be torture. Many ways of killing someone are torture. But the fast methods are not. Tell me your definition if it can somehow apply to the use of a guillotine.