Robert Prewitt was clearing his north St. Louis lawn of leaves 11:00AM on Wednesday when Da'Mon Williams came up wearing gloves, mask and other outerwear and shot Prewitt three times, killing him. He then ditched the concealment garb at a second location. The crime appears to have been targeted.
https://fox2now.com/news/missouri/teen-charged-in-92-year-old-mans-shooting-death-in-north-st-louis-county/