The night before Sophie Reeder went missing, she was pacing the floor of her father's Fort Lauderdale home. Around 11:30 p.m., he told her to go to bed. But when he woke up the next morning, his teenage daughter wasn't there. "I went into her room. I saw a candle burning and her computer on her bed, but she wasn't in her bedroom," Patrick Reeder, Sophie's dad, says in a new episode of an Investigation Discovery show called In Pursuit: The Missing. The one-hour episode, which is bringing renewed attention to Reeder's disappearance, will be available to stream on discovery+ this Sunday, March 7, and will air on the Investigation Discovery channel on Monday, March 8, at 9 p.m.