Last August when Arc Gallery put out a call for submissions for an exhibition to be titled “I Can’t Breathe,” the idea was to “begin a conversation” about “the shocking violence by police against unarmed citizens” that had been revealed in “video after video” over the previous year.

A week ago, Chicago got to see its own indelible, racially charged video: the long-withheld record of the killing of Laquan McDonald. This exhibit, which could just as well be called “16 Shots,” is appallingly timely. Curated by Romi Crawford and Mary Patten, it features work in multiple media by dozens of artists from around the U.S. and beyond.