In one of the shootings, a 21-year=old man was killed and three others wounded.
It happened around 11 p.m. Friday night in the 7900 block of S. Paulina.
Police say three males got out of a light-colored sedan and opened fire, striking the victims.
Twenty-one-year-old Christopher Reeves was shot in the back and taken to Christ where he was pronounced dead.
No one is in custody yet.