Tyrone “Marty Lo” Williams

Officers want the public's help finding the driver of the Chevrolet Malibu with an Illinois seven-day temporary permit attached to the back. Police don't know the model year but said it could be 2019 or newer. Tyrone “Marty Lo” Williams, 20, of Alton, was gunned down last Wednesday night in the 1600 block of Rock Spring Drive.