NBC 5 recounted the livestream:
A live-stream recording of the church’s Sunday morning service showed the shooting and the commotion that followed.
In the video, someone thought to be the shooter gets up when the congregation greets each other, shakes hands and walks out talking to someone.
The shooter reenters the sanctuary, talks to a man in a suit and sits down. The person gets up again and talks to the same man, who points in a direction, and the shooter pulls out a firearm and shoots two people.
Another man pulls out a handgun and shoots the suspect. In the moments that follow, people can be heard screaming and church leaders ask that everyone sits down to wait for the police.
“Everything is under control. Our security team did exactly what they needed to do, but we do have one of our members that's injured, so please,†someone is heard saying. “We have a gentleman that came in armed to do harm, and the police are on their way.â€
https://townhall.com/tipsheet/bethbaumann/2019/12/29/breaking-armed-parishioner-stops-gunman-who-opened-fired-during-church-communion-n2558654There is video at the link.