LOL..keep digging...you are admitting that this whole shooting incident was personal, and not an act against mormonism in general.
As to the shunning, your claim that your "church" does not practice it but there are many who have experienced it from the members...in fact, there are those non-mormons who live in Utah who will tell you of their children not being allowed to play with mormons.
I can remember an incident like the one you describe. A woman on the next block, who I had really liked, began an affair with a co-worker, decided the Mormon church wasn’t true, walked out on her faithful husband, breaking his heart, convinced two of her four children to leave the husband and the church with her, and began going around the ward to people whom she considered vulnerable, trying to talk them into leaving the church, too. She couldn’t just leave. She had to try to convince as many people as possible that she was right, and they were stupid to stay. I couldn’t look her in the face. I didn’t know what to say to her. She probably thought I was jerk, too. Oh, well.
As I said, people tend to avoid those who are hostile to everything that they hold sacred. I make no apologies for that.