Mystery as missing Idaho truck driver David Schultz is found dead 1.5 miles from abandoned rig carrying live pigs which was left in middle of the road

The body of a missing truck driver has been found in an Iowa field close to where his abandoned rig which was carrying pigs was discovered just before Thanksgiving.

David Schultz's semi was found parked in the middle of the road on an isolated highway on November 21 and his death remains a mystery. 

The 53-year-old's family confirmed he was found dead on Wednesday and said the Sac County Sheriff's Office identified him by the boots he was wearing and the keys in his pocket. 

'I had a feeling he would be found... when the farmers were getting their fields ready,' his wife Sarah Schultz told a news conference on Thursday. 'But I just didn't know when. And it was yesterday.' 

She said the discovery has brought a mixture of relief and sorrow as there are a lot of unanswered questions. 

The body of a missing truck driver has been found in an Iowa field close to where his abandoned rig which was carrying pigs was discovered just before Thanksgiving

David Schultz's (center, right) semi was found parked in the middle of the road on an isolated highway on November 21 and his death remains a mystery

His wife Sarah Schultz (pictured) confirmed he was found dead on Wednesday and said the Sac County Sheriff's Office identified him by the boots he was wearing and the keys in his pocket

The Iowa Department of Public Safety are yet to identify the body as Schultz's but said a forensic autopsy was planned.

His wife Sarah told reporters the person found was wearing boots that matched her husband's and his keys were found in the pants pocket.

'I'm glad we know where he is now,' she said. 'There's still a lot of questions. Things don't make sense.'

Schultz, from Wall Lake, left home late on the night of November 20 to pick up a load of pigs from a hog confinement near Eagle Grove, Iowa. 

He was expected to deliver the pigs the next morning to a livestock dealer in Sac City, Iowa, a small farming town about 90 miles northwest of Des Moines. 

When he didn't show up, no one could get him on the phone.

Sarah reported him missing and the truck was found later that afternoon, less than 1.5 miles northeast of his destination. 

The pigs were still in the trailer. Schultz's wallet and phone were inside his rig. His jacket was on the roadside.

His wife Sarah told reporters the person found was wearing boots that matched her husband's, and his keys were found in the pants pocket

Jake Rowley, the regional team leader of United Cajun Navy, a nonprofit search-and-rescue organization that helped with the search, said local law enforcement agencies searched the area where the body was found immediately after Schultz went missing, including with drones. 

More than 250 volunteers searched an additional 100,000 acres.

An unanswered question, Rowley said, was whether the the body 'was there the entire time,' or if it was recently moved to the spot where it was found.

Sarah described her husband as a devoted family man who stressed to his kids the importance of being respectful and working hard.

'He was such a good father,' Sarah Schultz said. 'It's not fair.'

DailyMail.com has contacted Sac County Sheriff's Office for comment.