On September 15, 2017, Ida Arvizu, 28, was one of four people killed in a mass shooting in the Brighton Park neighborhood of Chicago. The shooting happened about 8:35 p.m. on South Fairfield Avenue; Arvizu, who was seven months pregnant, was found shot to death in a bullet-riddled sedan alongside Joel Sandoval, 24, Miguel Sandoval, 27, and Michelle Cano, 21. All four occupants were pronounced dead at the scene.

Arvizu had reportedly met up that night with Joel Sandoval, her ex-boyfriend and the father of her unborn child; she had broken up with him because of his alleged involvement in gang-related activity. She was mother to a 7-year-old daughter and had planned to name the expected baby Ramundo. Witnesses saw a white SUV fleeing the scene after the ambush; Brighton Park, an area struggling with gang violence, has seen frequent shootings.

No arrests have been announced and the case remains unsolved. If anyone knew Ida, the others in the car, or saw a white SUV fleeing South Fairfield Avenue that night, please come forward with information.