This morning there was a murder in a church in Texas. A few seconds later, further murders were prevented by the quick action of a counter-murderer who protected the congregation. In the incident, it appears that someone tried to draw a pistol but was unsuccessful and got shot for his trouble. It is possible he was trying to get his cell phone to call for help, though. The footage is not very clear.
What was the requisite level of skill to end this situation? The shot would appear to be two aisles plus the width of a pew.
At the recommended 24 inches per person for 12 people (4 hymnal racks per pew with 3 per), that would be 24 feet for the pew plus 10 feet (two 5 foot aisles). https://www.lifeway.com/en/articles/church-architecture-rules-thumb-space-dimensions