Why was Guy Clarendon killed?


Hint 1 of 5:
There are two ways to answer the judge's question.  You can work out the
answer or you can use process of elimination.  Although there's a perfectly
logical way to solve this, it depends on your knowing the answer to another
of the judge's questions.  Since I don't want to answer a future question
for you, I'll use process of elimination.  Holmes will explain after the case
is over if you want the explanation.

Hint 2 of 5:
Clarendon didn't have any money, so Loretta wouldn't kill for it ("E").

Hint 3 of 5:
Several people told you about the nature of Loretta and Guy's relationship.
Both Langdale and Loretta gave you some important information.

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