YOU SAID:

They may have killed her and scattered her atoms to the wind.

INTO JAPANESE

彼らは彼女を殺し、彼女の原子を風に散らしたかもしれません。

BACK INTO ENGLISH

They could have killed her and scattered her atoms in the wind.

INTO JAPANESE

彼らは彼女を殺し、彼女の原子を風に散らすことができたでしょう。

BACK INTO ENGLISH

They could have killed her and scattered her atoms in the wind.