Police were called to the 200 block of Quebec Street north, shortly before 6 a.m. Thursday, after reports of a non-responsive person being put into a vehicle.
Upon arrival, the vehicle was gone and officers said they had little to confirm what had occurred.
Around the same time, police were also called to a house in the 1600 block of Toronto Street and found evidence indicating a connection to the events at the previous location.
At this point, police had still not located a victim but confirmed that an investigation was underway.
On Saturday, around 1:45 in the afternoon, the canine unit located the body of 54-year-old Shawn Roderick Douglas in a rural area, north east of the city.
An investigation with the assistance of the Saskatoon Police Service led to the arrests of seven men Ė two which are young persons tied to what is believed to be a homicide.
Eighteen-year-old Aiden James Anaquod, 23-year-old Johnathon Nelson Peepeetch, 24-year-old Joshua Duane Wilson, 30-year-old Michael Shane McNab, and 32-year-old Dennis Calvin Thompson have been charged with first degree murder.
A 16-year-old and 17-year-old are also facing the same charge but cannot be named.
All seven accused will make their first court appearance in Regina on Monday