7 killed, including a 17-year-old murdered trying to buy shoes, and at least 23 others wounded in Chicago over weekend

The recent weekend brought seven deadly shootings to Chicago. And at least 23 others were wounded.

Of the fatal shootings, a 17-year-old was killed Sunday afternoon in West Pullman on the South Side while trying to buy a pair of shoes from a social media seller. Two other teens were wounded in that tragic incident. Also on Sunday, in separate South Side shootings, two men were killed in Gresham, and in the other Sunday deadly shooting, a man was killed in Homan Squar.

On Saturday there were two deadly killings, one on the South Side in West Englewood and another on the Northwest Side in Belmont Cragin. Also on Saturday, a woman was found beaten to death.

There was a Friday deadly shooting in East Garfield Park on the West Side.

Next month the first round of voting in Chicago's mayoral race will take place. It's not a sound idea to latch on to opinion polls as truth, but one poll, from Fox Chicago, has Paul Vallas in the lead. He's made public safety the central theme of his campaign. 

But Vallas received just 28-percent in that poll. To avoid a runoff, he'll need to collect over 50 percent of the vote. With nine candidates in the mayoral race, it's very unlikely anyone will get close to that amount.