After Wilson died, his attorneys had a path, because Wilson (their client) had agreed to it; i.e., a post-death revelation. However, without his agreement, they had no path other than to violate the attorney-client privilege that covered Wilson's disclosure.
The reason that legal scholars have not written about the path you believe was available to Wilson's lawyers is because they, too, know not of it.
First paragraph above brings to mind Stanley Milgram's classic studies on "authoritarianism" performed at Yale University in the late 40s, early 50s.
After the holocaust, Milgram was interested in finding out why so many fine German military blindly followed their Nazi dictates without question.
(Google Milgram's name & you'll find his impressive conclusions. And, folks, please don't criticize me because I'm citing an "old" study; as I've said,
I'll agree with you that history is old, but we don't discard what it teaches.)
Essentially, Milgram found that folks will behave in ways which go against what they know is right when they conform unquestioningly and "follow the
rules" of
authority rather than to break rank.
If Professor AL couldn't find the "right path" from legal scholars because "they, too, know not of it," she could have consulted ancient writings, such
as those from Hebrew prophets, i.e.
Proverbs, or those of the ancient Greeks such as Socrates, or those which were thousands of years-old from
Chinese master's, such as Confuscius, and so on. . .or, finally, she even could have gone on an ascetic pilgrimage in pursuit of her own inner truth
without the trappings of ego, society, or fame to befuddle her.
And last but not least, since she's given to high drama in the courtroom such as handcuffing herself to a chair to make a point to the jury, she could have
done an
in vivo study on the effects of wrongful incarceration by spending, oh, let's say, six months in prison herself to weigh the validity of her decision
to keep her mouth shut about Alton Logan's innocence.