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Watson suspects that the dying words were an attempt at explanation rather than delirium. The gray cloth presents another difficulty: its owner would apparently have returned for it while James knelt nearby with his back turned. The combination seems extraordinary. Despite understanding Lestrade's skepticism, Watson retains hope because of his confidence in Holmes's judgment.
A man dying from a sudden blow does not commonly become delirious. No, it was more likely to be an attempt to explain how he met his fate. But what could it indicate? I cudgelled my brains to find some possible explanation. And then the incident of the grey cloth seen by young McCarthy. If that were true the murderer must have dropped some part of his dress, presumably his overcoat, in his flight, and must have had the hardihood to return and to carry it away at the instant when the son was kneeling with his back turned not a dozen paces off. What a tissue of mysteries and improbabilities the whole thing was! I did not wonder at Lestrade's opinion, and yet I had so much faith in Sherlock Holmes' insight that I could not lose hope as long as every fresh fact seemed to strengthen his conviction of young McCarthy's innocence.
突然の一撃で死んでいく人が、普通、うわごとを言うようになることはない。いや、自分がどうしてそんな最期を迎えたか、説明しようとした可能性のほうが高かった。だが、何を示そうとしたのだろう。私は何かありうる説明を見つけようと、懸命に頭を絞った。それに、若いマッカーシーが見たという灰色の布の件もあった。もしそれが本当なら、殺人犯は逃げる途中に衣服の一部、おそらく外套を落とし、息子が十二歩も離れていない所で背を向けてひざまずいている、そのまさに瞬間に、戻って持ち去るほどの大胆さを持っていたに違いなかった。この出来事全体は、なんという謎とありそうもない話の絡まりだったことだろう。レストレードの意見も不思議ではなかった。だが、それでも私は、シャーロック・ホームズの洞察力を深く信じていたので、新しい事実の一つ一つが若いマッカーシーの無実に対する彼の確信を強めるように見える限り、希望を失うことはできなかった。