Lukas Strasser-Hird was fatally injured in a fight outside a downtown bar last November.
He was found beaten and stabbed in an alleyway.
The latest suspect — 19-year-old Jordan Lee Liao of Calgary — was arrested Tuesday.
He is charged with second-degree murder.
Nathan Paul Gervais, who is 18 and also from Calgary, has already been charged with first-degree murder.
Three other men face second-degree murder charges.
The suspects are Assmar Ryiad Shlah, 20; Franz Emir Cabrera, 19; and Joch Pouk, 20 — all from Calgary.
Also on HuffPost