Logos includes an appeal to logic
The speaker had a specific identity. He was A.H.'s friend and this was the way he mourned him. No one else mourned him with those words. No one else shared the same experiences with A.H. The I may be known to the reader but that doesn't matter. The I is expressing his personal grief in his poems.
Because of its rapacious appetite, the shark is often considered to be more of an eating machine than a living creature
