According to the Greene County, Ohio Sheriff, the Sanderses set up wireless video cameras on a tree stump across the street from Duncan's property to monitor the activity there. On the morning of February 12, 2020, as Mr. Duncan and his wife, Molly, were returning home, they pulled into their driveway and were confronted by Robert Sanders.
Cheryl Sanders, who was monitoring the live stream of the events on her cell phone from the wireless cameras, then pulled up to the driveway in her vehicle and pointed her weapon toward Mrs. Duncan. Mr. Duncan shot Mrs. Sanders, killing her.