YOU SAID:

I've killed 2 people before and they think it's an indecent

INTO JAPANESE

私は2人を前に殺しました。彼らはそれが卑劣だと思います

BACK INTO ENGLISH

I killed two people in front. They think that it is sneaky

INTO JAPANESE

私は前に二人を殺した。彼らはそれが卑劣だと思う

BACK INTO ENGLISH

I killed them two before. They think it is sneaky

INTO JAPANESE

私は前に二人を殺した。彼らはそれが卑劣だと思う

BACK INTO ENGLISH

I killed them two before. They think it is sneaky