>> i expected something to be wet. i expected there to be water on the floor. >> things were not adding up. >> something was screaming to me, "something's bad, wrong." >> could this death have been deliberate? >> she was murdered. >> i love sarah. i would never have hurt her. >> i started crying because i just felt so bad for him. >> there's just no chance he had anything to do with it. >> three trials, three juries. >> we're scared that the truth may not come out. >> the bathtub mystery. hello and welcome to dateline extra. i'm craig melvin. a young couple that appeared to be deeply in love. but less than four months after tying the knot sarah mysteriously drowned in their bathtub. ryan claimed it was an accident, but to investigators his story just did not add up. was this a tragic mishap, or was something more sinister at play?