Cobras? In Pa? Whoa! This is the wtf story of the day. This is an animal NOT indigenous to the area. How is this possible? [philadelphia.cbslocal.com]
Check out the large predatory African cats we have here in Bloomington, IL.
The birth of Babylon?
I'm imagining that it's an escaped pet. This is consistent with it not having blinded its assailant as a pet would likely have been devenomated.