Complex sentence: The unarmed sisters were led into a sugar cane field and executed, they didn't even have the luxury of being shot, instead they were beaten to death, along with their driver, Rufino de la Cruz.
Split into simpler sentences: The unarmed sisters were led into a sugar cane field and executed. They didn't even have the luxury of being shot, instead they were beaten to death, along with their driver, Rufino de la Cruz.