It's a sad state of affairs when a group of people are planning to picket a funeral. Basic human decency says shouldn't do it. I wonder sometimes how these people would feel if it was one of their children thats was brutally murdered and someone decide to picket their child's funeral. I suspect that they wouldn't like it.
From what I have read -
members of the Westboro Baptist Church believe that they are the only ones who are following God's word. They also believe that because they are following God's word they cannot die. I imagine that if one of them died they would say that that person had sinned and God had rejected them and therefore the rest of the flock would reject the person who had died and there might not even be a funeral.
However I am not sure if they will take this tack if Fred himself dies.
Edited to add - I am almost certain that it was Nate Phelps who said that this is his family's attitude to death. Though it has been 30 years since Nate has talked to his family but I think he has kept himself up to date on their beliefs.