I had the exact same thing happen to me last week. Engine wouldn't start, sounded like the starter crapped out or the engine wouldn't budge (I don't know the difference). Thought it was the battery, so I charged it overnight. Radio worked fine, lights, doors, etc. were good. Still wouldn't start. Dipstick was dry as a bone. Uh-oh. Put more oil in, still wouldn't start. Had the car towed, but it turned out to be just a dead battery. Replaced it and everything else is fine now.