system
sad: A while ago one of my friends died from an overdose. I knew that she was fun and adventurous, but I had no idea that she was into stuff that could cause her harm.
human
A couple years ago, my friend died from an overdose. We were not super close but it was fun hanging out and I felt very shocked when I heard the news.
gpt
That is really sad. Many people I grew up with have passed from overdose. It's tragic.
human
I agree, I thought the war on drugs was meant to combat or maybe even make ground against this. I don't think it is working. 
gpt
I don't believe it is either. I'm so sorry to hear about your friend.