From A&E, this is Cold Case Files, the podcast. June 10th, 1975 in Wolf Creek, Montana.

One hour south of Great Falls, the original route of Lewis and Clark runs along the Missouri River, and through the

little belt mountains, splintered off the Missouri is a small tributary known to the locals

as Prickly Pear Creek.

On a summer day, a young couple, Leslie and Dennis Larson,

walk along the Creek Bank, looking to pick some mushrooms.

An hour later, the mushrooms remain unpicked, and Leslie

Larson has gone missing. Later that day, Dan La From Boys is an off-duty Montana patrolman.

He's waiting on his vehicle to be serviced at a local gas station.

When a car comes speeding down the road and screeches to a stop, a man gets out. He run across the street and he run up to me and he

hollered he says my wife just fell in the creek and she drown. The man says his name is Dennis Larson. He asks Lofram Boys to follow

him back to Prickly Pear Creek. On the way, Larson tells the lawman that his

wife Leslie slipped and fell into the water. Spring rains had swollen the creek

making it deep and wide with a dangerous current that dragged Leslie under.

Lefram Boys listens to Larson's story, but doesn't believe a word of it.

He said that he jumped into the creek to try to save his wife and try to find her.

And he says, I jumped in at that first log-in. And he says, I just got washed into that. He says, I crawled out. And I says, pretty deep, huh? And he says, oh yeah, way up like this. Well, he wasn't wet. And I thought,

what's going on here? That doesn't sound right.

Laffram Boyce calls for backup that begins to search the area. He follows the current downstream

figuring Leslie's body would get caught up in one of several log jams on the creek.

The trooper, however, finds no sign of a body.

Within the hour, Sheriff's deputies arrive

...