Walter McMillian's wrongful conviction shows how thin evidence becomes irreversible

Stevenson recounts how Walter McMillian, a Black man with a documented alibi and no prior serious record, was convicted of murdering a young white woman in Alabama based almost entirely on coerced and inconsistent witness testimony, obtained under pressure from investigators eager to close a high-profile case. Physical evidence contradicted the state's timeline, and multiple witnesses who could confirm McMillian's whereabouts were largely disregarded.

The case's momentum, once set in motion, proved extraordinarily hard to reverse: a jury actually recommended life imprisonment rather than execution, but the presiding judge overrode that recommendation and imposed a death sentence anyway, a legal mechanism Stevenson highlights as one troubling feature of the system at the time. McMillian spent roughly six years on death row before Stevenson's sustained legal work secured his exoneration.

Stevenson uses the case not as an aberration but as an illustration of how quickly circumstantial suspicion, once amplified by public pressure and investigator bias, can produce outcomes nearly impossible to undo through ordinary appeals. Takeaway: once a wrongful narrative gains institutional momentum, correcting it requires far more effort than it took to create.