Detroit, February 28 (RHC)-- Police officers in the U.S. state of Michigan who killed an African-American homeless man accused of stealing a cup of coffee will not face charges.

On July 1, 2012, Saginaw police fired 47 shots at Milton Hall, striking him 11 times. Hall had a history of mental illness and reportedly tried to defend himself with a pocket knife, at one point even calling 911 to plead for help as officers surrounded him.

Earlier this week, U.S. federal officials said there was not enough evidence of willful misconduct to prosecute the officers, who also previously avoided state charges. Milton Hall’s mother has filed suit against the city of Saginaw, calling her son’s death "execution by firing squad."