Thanks for your stories. Before this story, I knew chimps and gorillas were powerful, but I didn't know ones in capitivity could go "ape" like this. I was watching Ripley's the other night and a guy had a pet chimp that he had taught martial arts. The chimp had a honorary black belt. He was very good with his flying kicks. Sounds like they are dangerous enough as it is--wouldn't want to mess with one that knows martial arts as well.
I haven't read all of the comments, but there are a few things that come to mind: Chimps are not human. That's not to say they shouldn't live with humans. Dogs live with humans. Why not a chimp? That it would surprise anyone that a chimp might attack a human baffles me.
Look at the news. Everyday hundreds of thousands of people attack other people. Hundreds of dogs attack humans(not a very large number). That an occasional chimp atack surfaces in the news is a credit to how much more civil our primate cousins are than their human counterparts. At least chimp attacks are usually the result of a flash emotional reaction that is more predictable than the pre-meditated, greed motivated motives surounding too large a number of human attacks. From religion to race to government affiliation to greed to jealousy, is there any justification other than self-defense or hunger to attack another life(human or otherwise)? Poor Moe! Poor Davis'!