Yes, Whitey Bulger is evil scum. But the star witness against him, John Martorano, served only 12 years for murdering 20 people, one more than Bulger, according to the federal indictment.

Martorano’s victims include, by his own telling, at least two innocent teenagers. Martorano has also profited mightily from his homicidal career, splitting six-figure advances with a film company and with that paragon of virtue Howie Carr.

What is wrong with this picture?