Deangelo Black was an 18-year-old African American male who was shot and killed in Chicago, Illinois, on April 7, 2016. His death is described as part of the city’s broader problem with gun-related homicides and added to the toll of young lives lost to violence.

The Chicago Police Department opened an investigation into his murder.

What information do you have that might help investigators or the family find answers about what happened to Deangelo?