Originally posted by Sparkz
Another theory Parker came up with for her death was the shock of being knocked off the bridge killed her, but thats just probaly him being in denial that his attempt to save her killed her.
Actually, that's the theory the Goblin threw at him when he realized Gwen was dead. Peter is more than likely to blame himself for things like this, and it was indeed Spider-Man who hypothesized that he inadvertently killed her in that fashion.
In subsequent situations where civilians and even loved ones were falling from a great height, Spider-Man showed he had learned from his mistake and improved his method so it wasn't deadly to the person falling.