reporter: accidents in the wilderness happen, tragically, every day. so why did investigators suspect that leslie s death wasn t an accident at all? the evidence at the scene makes us believe that something entirely different happened. he told me she fell 20 feet. where were the injuries? why did i not see what i expected to see? reporter: for investigators, disturbing clues in the woods and water. if your theory is right, that is like she was being hunted. yeah, it s almost like a hare and a wolf. reporter: two harrowing accounts of what happened to leslie. one seemingly un-solvable mystery. either you believe crazy story a or you believe crazy story b . both stories are crazy. which one do you want to go with? reporter: i m lester holt and this is dateline . here s andrea canning with the secrets of cottonwood creek . reporter: winding down a mountain in southwest colorado, waterfalls spill over granite and sunlight filters through aspens and evergr
every day. so why did investigators suspect that leslie s death wasn t an accident at all? the evidence at the scene makes us believe that something entirely different happened. he told me she fell 20 feet. where were the injuries? why did i not see what i expected to see? reporter: for investigators, disturbing clues in the woods and water. if your theory is right, that is like she was being hunted. yeah, it s almost like a hare and a wolf. reporter: two harrowing accounts of what happened to leslie. one seemingly un-solvable mystery. either you believe crazy story a or you believe crazy story b . both stories are crazy. which one do you want to go with? reporter: i m lester holt and this is dateline . here s andrea canning with the secrets of cottonwood creek . reporter: winding down a mountain in southwest colorado, waterfalls spill over granite and sunlight filters through aspens and evergreens. cottonwood creek, an only-in-the-west sort of backdrop
the evidence at the scene makes us believe that something entirely different happened. he told me she fell 20 feet. where were the injuries? why did i not see what i expected to see? a search for the truth in the woods and water. if your theory is right, that is almost like she was being hunted. like a hare and a wolf. two chilling accounts of what happened to the mom they all adored. one seemingly unsolvable mystery. either you believe crazy story a or you believe crazy story b. both stories are crazy. which one do you want to go with? winding down a mountain in southwest colorado, waterfalls spill over granite and sunlight filters through aspens and evergreens. cottonwood creek an only-in-the-west sort of backdrop. these snapshots barely capture it, but who can resist trying? what a spot to preserve a memory. careful, though. this is wilderness. the dangerous kind. she s in the river. she fell and they can t find her. he thinks she s dead. reporter: th
it. you do not have the same director or deputy there have multiple people. people under investigation right now. there will be laws. if you look at the financial services bill that has gone through appropriations. not only is the irs defunded for but they have cut the budget. i think the same thing needs to happen with the possible examination of the nsa. but i do not think we ought to immediately toss out a program until we think about it and look at it, you know, and the homeland security people on both sides of the aisle tell us it has done the job. ok. one thing i would like to point out though if the program were abused, we would not know. let me rephrase that. we would not know it until it was too late. know or have i read that the way this deal was supposed to work was when the controversy first kind of started, they were going to monitor these phone calls to find terrorists outside the united states. when that person contacted someone within the united states,
a husband, falling apart. he was panicking. he was shaking, crying. narrator: accidents in the wilderness happen, tragically, every day. so why did investigators suspect that leslie s death wasn t an accident at all? the evidence at the scene makes us believe that something entirely different happened. he told me she fell 20 feet. where were the injuries? why did i not see what i expected to see? narrator: for investigators, disturbing clues in the woods and water. if your theory is right, that is like she was being hunted. yeah, it s almost like a hare and a wolf. narrator: two harrowing accounts of what happened to leslie one seemingly unsolvable mystery. either you believe crazy story a or you believe crazy story b. both stories are crazy. which one do you want to go with? narrator: i m lester holt, and this is dateline. here s andrea canning with the secrets of cottonwood creek. reporter: winding down a mountain in southwest colorado, water