Who are you?

Pain scooped the air from her throat. Shock made it impossible to speak. There was a cry on her lips, horror in her eyes. He let her go."What happened to you, Tom?" she whispered, as he was staring at the red mark that he let on her slender neck. He did hurt her. He frightened her."You did it, Riddle. You got rid of me. I hope that you'll have a happy life, but from what I know."