
People march around Filipino Plaza before a memorial for the Filipino community’s Lapu Lapu Day festival victims, in Vancouver, on May 31, 2025. The Canadian Press/Ethan Cairns
In the weeks before a deadly attack at a Vancouver Filipino festival, suspect Adam Kai-Ji Lo asked to have his antipsychotic medication reduced, even as his mental health was deteriorating, a B.C. Supreme Court lawsuit says.
The proposed class-action civil suit filed Thursday by a survivor of the attack says Lo’s psychiatrist was concerned during a meeting on April 11 that his patient’s mental health was deteriorating, that his delusions were increasing and his antipsychotic medication was insufficient.

