No, but I witnessed a murder.
When I was 15, I took classical guitar lessons at Hochstein Music School in Rochester New York.
One evening on my way out the back door from my lesson, I saw two guys try to rob the bursar woman who takes the money bag out at closing time...her husband jumped out of his car and yelled a racial slur at them so one of them shot the husband in the eye, he fell to the ground and was dead in 10 or 15 minutes.
My father (who was waiting in his car to pick me up) jumped out of his car to try to help the man.
It was a strange feeling to witness this, it seemed so matter of fact, not heated, I was not in fear because the guys ran and I felt sure they would not be back.
After my Dad sent me into the school with the bursar woman to call the police, I came back out and my Dad was kneeling next to the man and doing the last rites prayers and talking to him, that was pretty surreal.
My Dad ended up being a witness at the trial.
I was surprised by my Dad taking control of the situation so calmly...later is occurred to me that his years in WWII combat duty were probably the reason.