YOU SAID:

my dad killed the dog by pooping on him

INTO JAPANESE

私の父は彼にうんちをして犬を殺した

BACK INTO ENGLISH

My father pooped at him and killed the dog.

INTO JAPANESE

父は彼にうんちをして犬を殺した。

BACK INTO ENGLISH

My father killed the dog by pooping at him.

INTO JAPANESE

父は彼にうんちをして犬を殺した。

BACK INTO ENGLISH

My father killed the dog by pooping at him.