It was a violent weekend across Chicago.
At least 36 people were shot since Friday night, four of them were killed.
A 17-year-old has been charged with murder in one of the shootings.
Police say the teen shot and killed 20-year-old Joshua Martinez around 1 a.m. Sunday, after they got into an argument in Gage Park.
Just 30 minutes earlier, 28-year-old Jasmine Martinez was rushed to the hospital after a car pulled up beside hers and opened fire in Humboldt Park.
Her family says she was not in a gang.
Police Superintendent Garry McCarthy released a statement saying there is obviously much more work to be done and police will not rest until everyone in Chicago enjoys the same sense of safety.