Complex sentence: Dugard thought the man in the car would ask for directions, but when he rolled down the window, Phillip Garrido shocked Dugard unconscious with a stun gun and abducted her.
Split into simpler sentences: Dugard thought the man in the car would ask for directions. When he rolled down the window, Phillip Garrido shocked Dugard unconscious with a stun gun and abducted her.