Police shot and killed the large chimpanzee, named Travis, after it attacked a visitor at 241 Rockrimmon Road. Police Captain Richard Conklin says the homeowner Sandra Harold attempted to stop the animal from attacking her friend -- even stabbing him several times with a butcher knife. But Conklin says the chimp was still on the move when officers arrived to protect the scene so the victim could be evacuated.

Conklin says officers were forced to take refuge inside squad cars. "The chimpanzee knocked off one of the mirrors on one of the patrol cars and tried to open one door in an effort to get at one of the officers," Conklin said. "At that point, the officers shot the chimpanzee several times."

Conklin says the visitor sustained serious facial injuries while Harold suffered a heart attack. The chimp had a previous escape back in 2003.