Complex sentence: When vehicles in front of Gayheart stopped for Cruz, the actress drove around the stationary cars by pulling into a two-way left-turn lane; in doing so, she struck Cruz as he crossed the street.
Split into simpler sentences: When vehicles in front of Gayheart stopped for Cruz, the actress drove around the stationary cars by pulling into a two-way left-turn lane. In doing so, she struck Cruz as he crossed the street.