details. that was the worst day of my life that i found out about my mom. a loving couple. a romantic hike. a secluded spot. she was turning to look at the bird. it s like her feet just went out from under her. all of a sudden i hear yelling coming from downstream. there was mrs. muller floating face up. a wife falling to her death. her husband falling apart. he was panicking and shaking. crying. the evidence at the scene makes you believe 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 truth in the woods and water. if your theory is right, it is. loo like she was being hunted. almost like a hare and a wolf. two chilling accounts of what happened to the mom they adored. one seemingly unsolve able mystery. you either believe crazy story a or crazy story b. both stories are crazy. which one do you want to go with? winding down a mountain in southwest col
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
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