Mourners, including police officials from across the state, started to arrive before noon at Living Word Christian Center in Forest Park for the funeral of Chicago police Officer Krystal Rivera.

Rivera, 36, had been a Chicago police officer for four years when she was unintentionally shot and killed by a fellow officer during a foot chase in Chatham on June 5.

Rivera, a single mom, was killed by friendly fire from another officer during a foot chase earlier this month, police said.