Advocate Christ Medical Center in Oak Lawn

Joseph Brittman, 19, was shot and killed Wednesday afternoon in Chicago Lawn.

A 17-year-old boy and a 20-year-old woman were wounded in two shootings in Englewood late Monday night.

Demarco Powell, 28, and Steven Marshall, 28, were killed, and three others were injured in a shooting.

Four of the victims were shot in a single incident in West Englewood, two of them fatally.

A 25-year-old man was stabbed by his girlfriend Sunday night, police said.

Three men were killed in South Shore, and another man was gunned down in Washington Heights.

Mayor Rahm Emanuel and city officials awarded the Lambert Tree and Carter Harrison awards.

Jesse Gonzalez, 18, died hours after he was stabbed early Monday morning.

Jesse Gonzalez, 18, died after being stabbed early Monday morning, authorities said.

Antonio Calhoun, 19, was shot and killed Wednesday night in South Deering.

Jerrelle Samuels, 20, was shot and killed overnight Monday, authorities said.

Geanni Boyd, 16, was killed Wednesday night in Washington Park, police said.

A 16-year-old boy and men, ages 21 and 27, have been killed in shootings since Monday morning.

Dwan Long, 35, was shot and killed in Avalon Park late Wednesday, authorities said.

Family of Jerrell Brooks, 28, said they don't know why someone would want to kill him.