similiar thing with yote in northeastern nebraska/ south eastern south dakota. Had a house with enclosed porch and my cats were out sunning them selves in the evening when a yote actually started lunging at the screen windows to get them . My wife was home alone and she grabbed my old sigle shot 10ga and killed the yote (her first time shooting a gun). She also took out the window and window sill, so we actually turned the single door and window into a sliding glass unit which we always wanted to.
If the guy is defending his house with a BB gun I am sure we will hear on the news about a man eating mountain lion eventually.
Lifetime member VFW and NRA
"Quando Omni Flunkus Moritati" (when all else fails play dead) -Red Green