I think what they mean, is that it wouldn't give your cause justice. This guy is not representative of the people who have been hurt by the organisation, like yourselves. I think your e-mail idea is good but you should dress it up so it focuses on the victims, which this guy was not. I'm not saying he wasn't influenced by his religious upbringing, but a guy who kills his wife and kids then goes partying in Mexico with a babe definitely doesn't sound like a victim to me.
I do however understand what you're getting at.
mark