The shooting in broad daylight of a 22-year-old liquor hijacker from small-town Iowa exposed a nationwide criminal network.

Murder charges have been filed in the case of a 17-year-old who died after being shot in the back in late December in the Gravois Park neighborhood.

Just a $20 AirTag tracker is what led, really, to this case being solved,” he said. 36-year-old Robert D. Crutcher and ...