"A young man just came in in the middle of the service with an assault-style rifle and targeted one man in the church, and it was my father and shot him," Dave Parmenter said.
"He came back a second time and was very focused on him again and shot him another couple of times and in that exchange, he shot another man in the leg who happened to be in the way," Dave Parmenter said.
"Myself and a few others wrestled the man to the ground and took the weapon away from him."
Dave Parmenter said the suspect and his father knew each other.
He said the suspect is "very well-known to our family and was struggling with mental health issues."