A procession honored the officers and their families, and the names and faces of more than 500 Chicago police officers who lost their lives were on display.
Three officers were added to the Gold Star Families Memorial this year.
Officer Samuel Jimenez died saving lives while responding to a shooting at Mercy Hospital. Officers Eduardo Marmolejo and Conrad Gary died on the Metra tracks responding to a call of shots fired, struck by a train as they searched for a suspect.
Every name of every officer on the memorial was read aloud Tuesday night, a tribute to those who have made the ultimate sacrifice.