A first-person narrator is usually a character in the very story he is telling. For that reason, he can only tell the audience the things he knows, which can be limited or erroneous, or his assumptions, which can be quite biased. ... They lack impartiality since the story being told is influenced by their feelings
Theseus - mortal. Duke of Athens, Theseus is soon to be married to Hippolyta. He is busy making wedding plans and would rather not have this happy event blighted by the death of a young Athenian girl.