TONIGHT: An army soldier goes missing - now, follow the clues & the search in a gripping mystery that will leave you guessing until the very end. “You Took My Daughter” — the all-new 20/20 true crime event premieres tonight at 9/8c on ABC. Stream on Disney and Hulu. | ABC 20/20

TONIGHT: Meet the young girl helping to save the axolotl. Go On the Road with Steve Hartman in Boston at 6:30 p.m. on the CBS Evening News. | CBS News