Luis O Villa, 36 and living in Chicago, was fatally shot on November 6, 2016. His death occurred during a year that saw a sharp surge in violence citywide: Chicago recorded 764 homicides in 2016, and roughly 90 percent of those killings involved firearms.

The homicide happened amid reports that the abrupt dismantling of specialized policing units and reduced community outreach left neighborhoods more exposed to gang activity and retaliatory violence. Authorities and analysts also pointed to armed robberies and other financially motivated crimes as contributors to the spike, even as police recovered illegal guns at a higher per-capita rate than some other large cities.

Who knew Luis Villa or saw anything related to him on or around November 6, 2016?