Complex sentence: A large, sluglike, omnivorous monster emerges from the side of an impacted spaceship, and a second one, still tethered inside, kills the sheriff and a forest ranger when they independently enter the craft to investigate.
Split into simpler sentences: A large, sluglike, omnivorous monster emerges from the side of an impacted spaceship. A second one, still tethered inside, kills the sheriff and a forest ranger when they independently enter the craft to investigate.