A person was released from custody after a Tuesday morning shooting in West Rogers Park that left a man critically wounded.
The 38-year-old was outside about 8:40 a.m. in the 6500 block of North Washtenaw Avenue when someone opened fire, striking him in the head, Chicago police said.
He was taken to St. Francis Hospital in Evanston, where he was in critical condition, police said.
The alleged attacker was taken into custody, but was later released without being charged, police said Thursday morning.
A police spokeswoman said the investigation was ongoing.