Zofia Cisowski, the mother of Robert Dziekanski, has launched a lawsuit against the Canadian and British Columbia governments, the Vancouver airport, and the four police officers involved in her son’s death. Cisowski’s suit alleges the RCMP officers used excessive force against Dziekanski and that they had no grounds to detain or taser him multiple times. The suit also claims the RCMP “knowingly misrepresented her son’s conduct and the cause of his death” after the fact. As a result, “Ms. Cisowski suffered an extreme psychological shock that has resulted in a recognizable psychiatric illness or psychological harm,” says the statement of claim.