Sue Newby appears with a pair of horses in this photo provided by her family

BOISE - NewsChannel 7 obtained a copy of the 911 call Mark Newby made to police after his wife was pushed down a cliff.

In it he calmly tells dispatch that his wife was bucked off her horse and is lying at the bottom of a canyon.

For family and friends of Sue Newby, the story of an accident never added up.

Sue's sister Marjory and her husband stayed with mark after the death -- and as we learned today it was during that short week, the couple became suspicious.

"He is a very charming and disarming guy and he had his story down pat," Sue Newby’s brother-in law Frank Sente said.

It was the way Mark Newby acted after his wife Sue was killed on a horse back riding trip that left Sente concerned.

"He did some strange things that week, but after the death of a wife, you do strange things," he said.

Frank and Marjory hoped Mark's strangeness was typical -- but inside they knew something was wrong, and so did Sue's friends.

"We've always felt funny about their relationship,” Sente said. “I know many of Sue's friends felt funny about their relationship and particularly this incident.”

Police were also concerned with Mark's story.  In the affidavit for a search warrant -- from the minute Mark called dispatch to report the accident, police considered his actions strange.

Dispatch tape: "My wife and I were riding our horses out at Rocky Canyon north of Eagle Road, do you know where that is?”

For the first 30 seconds Mark tried to tell dispatch where he was located, but never told them what happened to his wife.

Dispatcher: "Hey sir, do you need police, fire or paramedics?"

Newby: "My wife got bucked off her horse, she's down at the bottom of the canyon."

Dispatcher: "Sir?"

Newby: "She's not moving."

Nine minutes into the call was the first and only time Mark yelled for Sue.

The call lasted 28 minutes -- and dispatch says Mark was not frantic and in no hurry.

Newby: "Okay, here comes the sheriff."

Dispatcher: "Okay We do have someone out there, you do see him?" 

Newby: "There's the ambulance and there's the sheriff."

Dispatcher: "Okay, I'm going to go ahead and let you go okay."

Newby: "Okay."

Dispatcher: "Alright, thank you sir."

Newby: "Okay."

Dispatcher: "Alrighty, bye bye."

Newby: "Bye."

It was the coolness that left police and friends feeling something was wrong.

"Sue had a lot of friends lot of friends who knew her well, they were good hard working people like Sue, and it didn't sit right with some of them," Sente said.

Court papers say one of Mark's previous wives considered him a charmer, manipulator, and schmoozer.

He wrote no death notice for Sue nor an obituary.  While the family thought that was strange, he told them it was to keep the media away -- but friends believe it was to keep Mark's mistress from knowing he was ever married.

"These things do happen and there are all sorts of charlatans and con people out there and he's proven himself to have been a good one, but not good enough," Sente said.

UNCUT: Listen to Mark Newby's 911 call

See where the crime occurred

Hear from neighbors who knew the couple

UNCUT: Sheriff lays out what happened

Family of Sue Newby: We were suspicious