Shooter opens fire in Avondale traffic, killing motorist

Police are looking for the assailant who opened fire in traffic, shooting and killing a motorist in another car Tuesday night in Avondale on the Northwest Side.

Around 9:55 p.m., Santiago I. Delgado, 21, was stopped in traffic in the 3400 block of West Diversey Avenue when a white SUV pulled up alongside his vehicle and someone inside opened fire, Chicago police said.

Delgado, of Avondale, was shot in the back and was taken to the Illinois Masonic Medical Center where he was pronounced dead at 10:29 p.m., according to the Cook County medical examiner's office. A 48-year-old man who was passenger in the vehicle wasn't injured.

Area 5 detectives were investigating.