Peel Regional Police say they are still looking for a suspect in the first-degree murder of a Brampton man in a Mississauga fast-food restaurant.

Shamar Lawson Meredith, 18, is wanted in connection with the April 27th killing of Kamar McIntosh, 19. A Canada-wide warrant has been issued for his arrest.

"His whereabouts are unknown," Police Chief Jennifer Evans said about Meredith on Tuesday.

"If you have seen this man, or have any information about him or his whereabouts, please contact police, or report it anonymously through Crime Stoppers."

Police say Kamar McIntosh was shot several times and killed last month after an altercation in a restaurant in Mississauga. (GoFundMe)

McIntosh was shot several times and killed on Thursday, April 27 after an altercation in Popeyes Louisiana Kitchen in the area of Hurontario Street and King Street East in Mississauga. The suspects fled the scene.

Evans said a third suspect, a 17-year-old man, was arrested on May 3rd and charged with first degree murder in the case. He cannot be named under the Youth Criminal Justice Act.

Thulani Chizanga, 19, also wanted in the murder, has surrendered to police. A Canada-wide warrant was also issued for Chizanga.

Det.-Sgt. Sean Brennan said police are expanding their search for Meredith.

"We do believe Mr. Meredith is aware that we are actively looking for him," he said. "We are looking at all sorts of sources."

Brennan said police believe Meredith lives in the Mississauga area.

He said they believe McIntosh was targeted, he knew the suspects and there were "gang affiliations" involved.

(Lauren Pelley/CBC)

At the news conference, Evans updated the public on three homicide cases, saying four arrests in the cases have been made and help from the members of the community can make a difference in police investigations.

"Community involvement is instrumental in keeping our community safe," Evans said.

"Every death is one too many."