Patrick Cyril Thauberger, who was 53 years old at the time of his disappearance, was last seen on Sept. 3, 1997. He was reported missing 13 days later.
Police say the discovery was made in rural Saskatchewan on Dec. 3, but are still investigating to confirm it is him. Family members have been notified.
In the initial missing person’s report, police said Thauberger was on his way from Winnipeg to Edmonton, but had made a stop in Regina to visit family.
The investigation placed him at a Regina bus depot and also confirmed he never made it to Edmonton.
On Sunday, Regina police arrested Joseph George Thauberger, 78, and charged him with first-degree murder.
Read more: Missing man found safe: Saskatoon police
Joseph is also charged with offering an indignity to a dead human body and uttering threats to a woman that took place over a span of nearly 20 years.
In 2016, Thauberger’s disappearance led police to an outdoor marijuana grow op in the RMs of Indian Head and South Qu’appelle.
Joseph was charged with producing a scheduled substance (cannabis) and possession with the purpose of trafficking.
Court documents reveal he pleaded guilty to one count of possessing marijuana and was fined. All other allegations were withdrawn.