Sorry I didn't mean to break the bad news... That sucks if you weren't beating it and this happened.
Hopefully its something minor, but be prepared for the worst...
If you put a brand new oil pump in a year ago, I can't see it being an oil pump failure... Is it an autozone part or OEM?
It is quite possible for the bearing to spin immediately, cause the crank is spinning, in your case, at 5500 rpms. That means the crank spun around 91 times in just one second. I'm sure it was at least 2 or 3 seconds for you to realize the noise and turn the motor off.
Remove the pan and girdle, if you see metal in the oil, its prob toasted. Move the conn rod with your hand, if there is any play it means costly repair.