A father was shot and killed while walking with his teenage son in front of an apartment building in Bedford Park, authorities say.
Police identified the victim as 39-year-old Pedro Sanchez Almonte.
Police say a gunman on a bicycle approached the man's 14-year-old son about a possible gang-related dispute and opened fire.
A 25-year-old man was grazed by a bullet in the head. Police say he appears to be an innocent bystander.