Not conclusive by any means, but here is a comparison of Richard's signature with that of George Hutchinson on one of his statements. The dot of the i is markedly to the right on both and the small r seems identical. Not much to go on though here.
You’d need way more than a dot on an i one (Blake’s) being more of a dash anyway.
G U T
There are two ways to be fooled, one is to believe what isn't true, the other is to refuse to believe that which is true.