1998. Summer. It was ridiculously hot, and we had no aircon, we were broke.
Was playing cards with my sister and her friend, I heard what sounded like feint screaming. My sister's friend was like "man, that's just a cat". I told everyone to be quiet while I stuck my head out of the window. Sure enough, I believed I heard muffled or feint screaming. Me being young and stupid, I told them let's go outside and see what's up, luckily some of our neighbors came out too...there was a car idling in the middle of the road with blood on the windows. I wasn't trying to be a hero so I stayed on the curb to see what happened, my neighbors stood in front of the car, and one big dude pressed up against the door so the passenger couldn't get out.
I ran into our apt, called 911, gave a description. Surprisingly they arrived pretty quickly with the ambulance.
Turns out it was a young Chinese couple, they argued about something while driving, and the dude just starting stabbing the life out of that girl. Medical staff said if it wasn't for us reacting quickly she would have died.
I'm sure the dude is still doing time somewhere....