About strangulation death --
There are other opinions in this article -- I picked it because it was done by a detective and includes remarks about why it is considered what we call 1st degree murder.
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Benjamin Bender, former Detective at St Louis Metropolitan Police (1994-2006)
Answered Feb 19, 2017 · Author has 579 answers and 1.7m answer views
In a fight if I were to hold you down and begin choking you it would take about a full minute for you to lose consciousness assuming your heart is pounding and breathing rapid.
To kill the person you would have to continue to apply pressure sufficient to strangulate for about 4–5 min in order to ensure death…probably longer in some cases.
That is why it is one of the more horrible an harshly punished murders. It takes a long time to do. You have a minim of 4–6 min to sit there quietly with the person unconscious squeezing with time to stop and reconsider. It’s not a trigger pull instant decision. It’s a process. You can’t argue self defense or heat of the moment with strangulation. You had a long time with the person utterly defenseless to stop and come to your senses as it were.
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https://www.quora.com/How-long-would-it-take-for-a-person-to-die-of-strangulation
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There are other opinions in this article -- I picked it because it was done by a detective and includes remarks about why it is considered what we call 1st degree murder.