More info. Sounds like a transciever/beacon issue.
"Flathead County Sheriff Chuck Curry told the Inter Lake on Monday that Dr. Jonathan Torgerson’s body was found a couple of hundred yards off Canyon Creek Road in a backcountry area accessible from Whitefish Mountain Resort’s Flower Point area.
...
A search dog from Colorado ultimately made the discovery at the bottom of the avalanche path, Curry said.
“He was in an area that had a cursory search previously, but transceivers didn’t get a hit off his beacon,” Curry said.
Curry said it did not appear that Torgerson suffered any traumatic injuries."
Edit: Tons more info in this new article:
http://flatheadbeacon.com/2018/05/15/recovery-missing-doctor-brings-closure-community/