Stay tuned for the details on whom may be responsible.
But just as a helpful note: 'who''s case does not come from following 'on'.
Here is a simple rule that everyone should remember always:
A relative pronoun takes its case from the role it plays in its own clause.
In the given example, 'who' is the subject of 'may be', thus it is nominative.
Just needed to get that out there.
Or in layman's English:
ReplyDeletewhen one could substitute "he" for "whom," "who" is actually correct.
"Whom gave the black eye to who?" is incorrect because it translates as "him gave the black eye to he," which makes no sense.
The on in your original example makes it a little tricky, which is where your 'in it's own clause' is really important. But any editrix worth her salt would've played with it and realized that "him is responsible," is reaaally wrong. With three 'a's.
(I had to settle this for a Hungarian English language teacher recently.)