The body of a man was pulled out of the Rideau River on Saturday morning, police say, after a search that lasted more than two days.
A member of the public spotted the body at about 9 a.m. ET, according to Ottawa Police Service Insp. John Medeiros.
An autopsy to confirm the identity has not yet been conducted.
Sultan, 23, of Calgary, is wanted on a charge of second-degree murder in connection with the death of 18-year-old Cook, who was shot and killed while trying to track down his lost cellphone on June 14 in London.
Police search began Wednesday
On Wednesday, June 24, a man police believe was Sultan allegedly used a vehicle to try to run over two Ottawa police officers who were on bicycles in the downtown area at about 4 p.m.
One of the officers was struck and suffered minor injuries, police said in a media release issued the following day.
A police cruiser chased the suspect vehicle, which was found abandoned on Wiggins Private, near the Rideau River.
Hours later, police received a number of calls from residents about a suspicious man near Range Road and Mann Avenue, just metres away from the abandoned vehicle on Wiggins Private. He was seen trying to swim across the Rideau River, police said.
Two police officers went into the water after the man, who was showing signs of distress.
"As the officers got closer to the suspect, he went under the water and has yet to be located," police said.
The body was found about a kilometre downstream from the area the man went missing.
Ontario's Special Investigations Unit is looking into the incident. The agency investigates cases of death, serious injury and allegations of sexual assault involving police.