This could be any of our families. It's a heartbreaking read. I had followed a number of accidental discharge cases related to the Remington 700 Walker trigger. Some very sad stories of accidental deaths and maimings. But I didn't know the X Mark Pro trigger and the subsequent recall had this kind of carnage associated with it.
https://www.thetrace.org/features/remington-rifle-mississippi-brothers-shooting/
https://www.thetrace.org/features/remington-rifle-mississippi-brothers-shooting/