But thats the point , there is great reason to doubt it . We have no idea about roy tagliofera remember ?
We should talk about it , think about the situation.
 Dumar ate over there with roy. Roy is in his mid 30s. Roy was working on building a farm.
Where do u prove that red john  is roy? 
He drew his mark on the wall  to mess with jane , why else.        
            
                How do you find this theory?
            
    plausible
            unlikely
        