First, RIP to the police officer, irrespective of "what went wrong" prior to the incident.There were occasions when dealing with insurgents that we didn't risk giving them morphine/fentanyl etc as we didn't know what they'd already taken, some were clearly off their ****
every effort was taken to ensure their survival, regardless of what they had (allegedly) done or how badly injured they were (ignoring the actions of some people)
applying one, or more, life-saving tourniquets and/or inserting a lot of hemcon/celox into a wound is incredibly uncomfortable.
One doesn't have to do anything underhand to a casualty
On the bold - if it is a head injury the suicidee suffers, there will be a lot of pain. If I remember, head injuries often demand only local anaesthetic.