"Don't remember," Samuel replied, uninvitingly.

He then closed his eyes, a clear sign he wanted the conversation over. "You may leave now. I need my rest."

Alexander was undeterred. He picked up the photo that had fallen on the bed and held it out to Samuel again.

"Mr. Nelson, please!” he pleaded. “She's very important to our family. We've been searching for her for over twenty years, and you’re the only real lead we've got. If you help me find ...