According to Reuters, a mountain lion crawled into a Colorado home on Friday and killed a family’s pet house cat and fled into a canyon after wildlife officers shot it with non-lethal bean bag rounds to force it outside. The prowling cougar came through an unlocked screen door at a home in Boulder late Thursday night while the occupants weren't home. The residents discovered the mountain lion inside their residence when they arrived home, and called police who then summoned the wildlife agency.