At the time, Vancouver police said the man was distraught and waving a two-by-four. Police said Du refused to comply with officers' directions and that bean-bag rounds were fired in an attempt to disarm him, "but he was eventually shot."
A witness to the shooting told CBC News the entire incident unfolded within a minute.
"We are deeply disturbed by the circumstances of Mr. Phuong's death and the actions of the Vancouver Police Department," said Chanel Lys, one of the vigil's young organizers.
"We also are concerned about many issues within our community, such as violence, mental health, the lack of dialogue, racism, and police brutality. This event will pay respect to Du Na Phuong and initiate a conversation about the accountability that needs to be taken for the safety of our Vietnamese families and friends.”
The Independent Investigations Office, which provides civilian oversight of serious police incidents, continues to investigate.