12/13/2013 12:09 EST | Updated 02/11/2014 05:59 EST

Lukas Strasser-Hird Death: 4th Calgary Man Charged In Swarm Murder

CALGARY - Police in Calgary have charged a fourth person in the swarming death of a man.

Police say 18-year-old Lukas Strasser-Hird died of stab wounds on Nov. 23.

Officers believe he was involved in two fights prior to his death.

Joch Pouk, who is 20, and 19-year-old Franz Emir Cabrera are charged with second-degree murder.

Nathan Paul Gervais, who is 18, is charged with first-degree murder.

Police say the fourth man is facing a charge of second-degree murder and his name will be released once he has seen a justice of the peace.

Investigators say some onlookers took videos or photos with their cellphones of one or both fights and police would like to have these.

They can be sent to or through Crime Stoppers' online tips form.

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