Complex sentence: As the men fight Pewtie deperately manages to fire a shot, which hideously wounds Lamar, the fight finishes as Bud uses his back-up gun to shoot Lamar in the head.
Split into simpler sentences: As the men fight Pewtie deperately manages to fire a shot, which hideously wounds Lamar. The fight finishes as Bud uses his back-up gun to shoot Lamar in the head.