YOU SAID:
WHat happened to my son im terrified
INTO JAPANESE
私の息子に何が起こったのか恐ろしい
BACK INTO ENGLISH
It is horrible what happened to my son
INTO JAPANESE
私の息子に何が起こったのは恐ろしいことです
BACK INTO ENGLISH
What happened to my son is terrible
INTO JAPANESE
私の息子に何が起こったのはひどい
BACK INTO ENGLISH
What happened to my son is terrible
That didn't even make that much sense in English.