executive. but as your career was on the rise. her marriage was on the rocks. sydney i still wanted this marriage to work, i did not give up. soon he was gone, vanished without a word or a trace. he left the young daughter behind. he left the house. was this a husband who did not want to be found? or could this be something else. detectives are not an undercover operation. that would lead to a long hard to say ready for that? i know that it has to happen. disappearance in the desert. could it be the perfect crime. i can t imagine what would be like to keep that. welcome to dateline. i m lester holt. for eight years it was a mystery, a husband who had simply vanished. on the surface it didn t make sense. he had a wife, a lucrative job, a daughter he loved. but investigators were told he also had a secret. so was he missing or was he hiding? that question would lead detectives to a dark discovery because someone else had a secret to. here s josh michael it s.