Washington-The man arrested in the case of the Pro-Trump activist Charlie Kirk, arrested in the case of the killed, refuses to work with the authorities. The investigators now tried to determine a motive for the crime by talking to friends and family, said the governor of Utah, Spencer Cox. The 22-year-old suspected shooter Tyler R. will be formally charged on Tuesday. He remains in custody in Utah. In the United States, the crime had fueled fears of an increase in political violence.