Aiden McCarthy's photo was shared across Chicago-area social media groups in the hours after the July 4 parade shooting in Highland Park, accompanied by pleas to help identify the 2-year-old who had been found at the scene bloodied and alone and to reunite him with his family. On Tuesday, friends and authorities confirmed that the boy's parents, Kevin McCarthy, 37, and Irina McCarthy, 35, were among seven people killed in the tragedy.
