Vancouver police ruled out terrorism as a motivator for the incident at the Lapu Lapu Day Festival, saying the suspect has a history of mental health issues.

A driver plowed a car into a crowd at a street festival celebrating Filipino heritage in Vancouver on Saturday night, killing at least 11 people and injuring dozens more in what police are calling “the darkest day” in the city’s history.

30-year-old Kai-Ji Adam Lo was charged with eight counts of second-degree murder in a Vancouver courtroom on Sunday, April 27 in relation to an attack that took place on April 26, which left at least 11 dead.