In the movie Reservoir Dogs, near the end of the film, there's a standoff between three guys. They all end up firing their guns. One was aiming at Mr. Orange, one was aiming at Mr. White, and one was aiming at the boss. When the guns fired Mr. White, the boss, and Nice Guy Eddie fell. No one was aiming at Eddie! Who shot Nice Guy Eddie?
Ah, one of the great movie questions. I'm surprised it hasn't come up here before. This particular Mexican standoff scene has been dissected quite a bit, and the IMDB link provided by @GertArnold gives the consensus:
The only other possibilities are either Mr. Pink or Mr. Orange, but Pink was hiding and Orange had just unloaded his gun into Mr. Blonde:
(The scene can be watched in slow motion here on Youtube.)
Finally, an excerpt from the original script backs up that it was Mr. White:
While the shootout unfolds slightly differently in the script to what is on screen, it is mainly superficial details such as what is said. The characters' intentions are maintained, which clears Mr. Orange and Mr. Pink, who were present but not responsible:
It was Mr. White after he shot Joe.
Larry (Mr. White) shot Nice Guy Eddie.
It's all a bit unclear and very quick (the frames above are from about 0.5 seconds), but thankfully Chris Penn (the guy who plays Nice Guy Eddie) explained it: