It depends. Sometimes, a “victim” was doing something mind-blowingly stupid with an obviously high risk of serious harm, like that banker who was shooting up heroin with a prostitute who advertised herself as dangerously insane. “Play stupid games, win stupid prizes.”
Yes... that is different. I would say that person was actively participating in something that turned deadly. I just think a person worshiping God.. in His house.. has nothing whatsoever to do with their own murder.
Several years ago a man walked into Mass carrying a back pack and looking somewhat deranged. This was right after the Amish Church shooting.
I told my wife that if I stood up she was to get under the pew and stay there until I came to get her.
I knew that I might not be able to stop him but I was going to distract him and make me his focus long enough for others to hopefully grab him.
Fortunately he was just a homeless guy looking for a hand out, but in todays day and age you never know.
Si vis pacem, para bellum