Clyde Marshall, one of the two suspects accused of murdering 32-year-old Sina Parsi earlier this month, has a history of violence and disregard for law enforcement, according to police. 

At a news conference Monday afternoon, Det. Sgt. Michael Patterson provided more information about Marshall and his suspected accomplice Sabrina Chouart, who have been on the run for the past 10 days.

Police also released new video surveillance footage that appears to show Parsi willingly walking with the couple outside their apartment building on the night of the murder.

Parsi was reported missing after he did not return home from a soccer game in the area of Teston Road and Highway 400 on the night of June 9.

York Regional Police found the Vaughan man’s vehicle and wallet in a parking lot near Jane Street and St. Clair Avenue on June 11 and his body was discovered on the night of June 12 inside a Woolner Avenue apartment the suspects had been residing in for the past two years.

Previously released surveillance footage showed the couple leaving their apartment in the early morning hours of June 10 carrying large hiking backpacks. They have not been spotted since.

Patterson said hundreds of tips have come in across the country about the possible whereabouts of the couple, however none have amounted to confirmed sightings.

He warned law enforcement officials to have appropriate backup if they attempt to apprehend the suspects.

“We’ve dug into (Marshall’s) history including correctional records and there is quite a long history of defiant behavior, aggressive behavior, violence with sharp objects while in custody. He has also shown a complete disregard for law enforcement throughout his criminal history,” Patterson said, adding that he believes the two will do whatever it takes to stay on the run.

Members of the public who notice suspicious activity, such as thefts from backyards, trailers, cottages, and vehicles, are asked to contact police immediately.

“If these two are on the loose, they will be out of money and they will need food and shelter,” Patterson said.

“With the passage of time, we truly believe that someone must be assisting them… and if you are providing these individuals with food, shelter, or aiding and abetting them in any way at all, you will be arrested and charged.”

The detective urged the couple to come forward and bring the manhunt to a peaceful conclusion.

“There is only one way to end this properly and that is by turning yourself in,” he said.

“Get yourself a lawyer, take their advice and come and talk to me. I am willing to listen to your side.”

Both Marshall and Chouart were born and raised on the east coast and police say it is possible they may be headed back home.

Police say it is too early to tell exactly how the suspects and Parsi knew each other but say the fact that Parsi was walking with the couple voluntarily indicates he had some level of comfort with them.

“I’m not suggesting that they are friends at all,” Patterson said.

The investigator said there is some indication that the suspects are connected to drug trafficking but he would not say if police believe Parsi was buying drugs from the pair on the night of the murder.