In January, suicidal 18-year-old Christian Chavez was shot and killed by sheriff's deputies in Kern County, California, after a bystander contacted emergency services. Onlookers at the scene claim he was holding a knife but pointing it at his own chest, indicating a state of acute psychiatric crisis. Such situations are not uncommon, as police are trained to provide law enforcement services, not mental health care, but they're often the first line of defence when people call for help. Read more