悲(かな)し()い() kanashiiこと kotoに ni、彼(かの)女(じょ)の() kanojono息(むす)子(こ) musukoは wa若(わか)死(じ)に() wakajiniした shita。 Sadly, her son died young. Literal Sad [to the fact that-ことに], her son [topic-は] young-death did. 若死にする means 'to die young' — a compound from 若 (young) + 死に (death). A tragic, concise statement. deathfamilysadness悲しいことに (sadly)
悲(かな)し()い() kanashiiこと kotoに ni、彼(かの)女(じょ)の() kanojono息(むす)子(こ) musukoは wa若(わか)死(じ)に() wakajiniした shita。 Sadly, her son died young. Literal Sad [to the fact that-ことに], her son [topic-は] young-death did. 若死にする means 'to die young' — a compound from 若 (young) + 死に (death). A tragic, concise statement. deathfamilysadness悲しいことに (sadly)