A memorial and rally was held on Saturday for one of the innocent victims of the so-called Surrey Six gang-style shooting that took place in the city's Whalley area in October 2007.

Christopher Mohan of Surrey, B.C. was shot and killed on the 15th floor of the Balmoral Tower in what police say was the worst gang-style shooting in the province's history.

Five others were killed, including innocent bystander Ed Schellenberg, and four people who were involved in criminal activities, according to police.

Chris Mohan, then 22 years old, would have turned 23 on Saturday.

In March, police said they had identified a 'person of interest' in the case and subsequently released a sketch of an Asian man in his 20s.

Police appealed to the public for help, but no arrests have been made.

His mother, Eileen Mohan, organized the service at Surrey's Valley View Memorial Gardens to honour all victims of violent crime, she said.

"With no arrest at the moment, my only option is to pray," she said. "This is the only way to honour Chris's birthday, in the hope that God will grant his blessings for us to endure the pain and grieve of losing my loving and wonderful son.

"I hope that in the future, no mother has to go through that I am having to endure and bear," she said.

Members of the RCMP and regional police forces have since created the Integrated Gang Task Force to combat an increasing number of gang-style shootings in Metro Vancouver.

With files from The Canadian Press and a report from CTV British Columbia's Shannon Paterson