I am a Christian, but by principle, not by dogma. Few things are more dangerous - and unfortunately, more common- than dogmatic Christians.
You can only call yourself a Christian if you follow the teachings of Christ and implement them into your life. By that strict definition, Shelton was a Christian until the very last minute of his life-such a wonderful life devoted to help others.
By the way, is this the right forum for this discussion? May be not.