I've reopened the closed older question and subsequently closed it as a duplicate of the newer one. The newer question and answer pair are better quality so it makes sense to have that as the duplicate "hub".
In general it's best not to close questions as duplicates to closed questions (if the system lets you). As this was a story-identification question the best bet is to reopen and duplicate close to the better question and answer pair. In non-Id cases I would probably recommend treating the question as if the closed duplicate doesn't exist in most cases.