あの (Ano)
↳ That
人 (Hito) ↳ Person
死んで (Shinde)
↳ Dying (Te-form)
しまった (Shimatta)
↳ Ended up / Unfortunately (Past tense)
Rule: 死ぬ (shinu) → 死んで (shinde)
By using the Te-form bridge, you transform a dry statement like “died” into a poignant expression: “They are gone, and it is sad/unfortunate.”
死んで + しまった
Shimau (しまう): Present/Future (will happen / I will do it).
Shimatta (しまった): Past (It happened / I did it).