died in the line of duty in 2020 died because of covid. even the previous chicago police union president died of covid earlier this month. but shootings are up 11% compared to last year and up almost 70 compared to the year before. leaving no room for a shortage of officers heading into the weekend when violence typically surges. in a letter to mayor lightfoot, two city aldermen are urging her to drop the mandate. we could lose officers if they get sick from covid-19 or we could confront a further unraveling of violence on our streets if officers decide not to work because of this mandate. for now, we are asking you to reconsider. the mayor not backing down. >> our goal is to create a safe workplace and the best way that we can do that, the biggest tool that we have, is by getting people fully vaccinated. >> reporter: omar jimenez, cnn, chicago. >> omar, thank you so much for that, appreciate it. vaccine hesitancy among officers