what's going on. >> it was the worst seconds of my life. >> but there was much more to come. two lives and so many secrets would soon be put under a microscope. >> what had happened upstairs in that bathroom? >> okay. >> how long has she been in here? >> i don't know. she was taking a bath. >> what did you think this was? >> we din know if it was a tragic accident or something else. >> it's the addiction, you know? it's the addiction. >> addiction? the mystery was just beginning when dateline continues. s just g when dateline continues. i knew about the tremors.