MINNEAPOLIS — Two white police officers involved in the fatal shooting of a black man last fall will not face criminal charges, a prosecutor announced Wednesday in a decision that drew outrage from community members who said the move showed that the legal system is rigged against African-Americans. Hennepin County Attorney Mike Freeman said his decision not to charge the officers in the death of 24-year-old Jamar Clark was based on forensic evidence that showed Clark was not handcuffed, as claimed by some people who said they saw the shooting, and had attempted to grab an officer’s weapon, which made them fear for their lives and justified use of deadly force. Clark ignored warnings to take his hands off Mark Ringgenberg’s gun before he was shot and told Ringgenberg and officer Dustin Schwarze: “I’m ready to die,” the prosecutor said. Freeman painstakingly described his decision, starting with police reports and witnesses.