Evan Brown sat on the concrete patio of his latest victim, crying and shaking from the torment that haunted him. He thought about his failure to protect his sister and what she’d endured in her final minutes. Years ago, she’d fought for breath, as the woman on the ground in front of him had done seconds ago. All the time he spent teaching Patti to swim and not to be afraid of drowning had been in vain. In the end, she had been right to be scared. Drowning would eventually get her. He glanced at the woman on her back with solidified foam protruding from her mouth and nose and wondered what Patti would have been like if she had lived to be this woman’s age. Evan felt sure she’d be finishing veterinary school, or maybe she’d be married and have several children of her own. Understanding that

