What was the most pointless or unecessary death you’ve seen?

Apart from suicides (or car accidents) what was the most preventable or needless death you’ve seen in the job ? I’m sorry if this is uncouth to ask. I’m just aware this is definitely a job that makes one aware how easy it is for any of us to lose our lives, and I’m sure y’all see accidents and misunderstandings that lead to death all the time.

What’s one that sticks out to you?