A fourth suspect, a 20-year-old, is facing first-degree murder charges in connection with a double homicide in Toronto’s east end in April.

Police say they charged Kyle Taylor, of Toronto, on Monday. He is the fourth suspect arrested in connection with the shooting deaths of 18-year-old Quentin Caza and 20-year-old Jeremy McNeil on April 15.

Toronto police were called to the area of Bain and Logan avenues at around 11:15 p.m. that day, for reports of gunshots.

When they arrived, officers found Caza and McNeil with gunshot wounds. One died at the scene, and the other was taken to the hospital with life-threatening injuries, where he was later pronounced deceased.

Caza and McNeil are the city’s ninth and 10th homicide victims, respectively, of the year.

The first suspect, a 17-year-old boy from Toronto, was arrested on May 3 and charged with two counts of first-degree murder.

Nearly two weeks later, police say they arrested two more suspects in Barrie: Abdulrahman Zein, 18, and another 17-year-old boy, both from Toronto. They were both charged with two counts of first-degree murder.

The charges have not been tested in court, and the 17-year-olds cannot be identified under the provisions of the Youth Criminal Justice Act.

“Our focus will always be on finding and arresting those who commit violent crimes in our city and putting them before the courts,” Det.-Sgt. Alan Bartlett said in Tuesday’s news release.

At the time of Taylor’s arrest, police say they brought another person into custody as a firearm was located on the accused.

Police arrested 23-year-old Brian Cada, of Toronto, and charged him with various firearm-related offences. Cada was also charged with possession of a schedule 1 substance for the purpose of trafficking and possession of property obtained by crime. The charges have not been tested in court.

Police did not say if Cada has any direct connection to April’s shooting.

Investigators are asking anyone with additional information to contact them or Crime Stoppers anonymously.

With files from CTV News Toronto’s Phil Tsekouras