A drive-by mass shooting killed four people and wounded 14 more late Wednesday night in River North, Chicago police said.

Chicago police said around 3:17 a.m., a group of people were standing outside in the 600 block of East 133rd Street, when the four victims were hit by gunfire.

A mass shooting in River North Wednesday night ripped off a scab on Chicago's violence that was just beginning to form.

A 21-year-old congressional intern was shot Monday night after getting caught in targeted gunfire in Northwest Washington, D.C., police said. Police and congressional officials identified the victim as Eric Tarpinian-Jachym,