Gov. Martin O'Malley needs to act soon to resolve the legal limbo into which the four remaining inmates on Maryland's death row have fallen since the repeal of the state's death penalty last year. State Attorney General Douglas F. Gansler opposed abolishing capital punishment in 2013, but now that it's a fact, he says, to his credit, that the state must change the sentences of the four men whose crimes were committed before the law was changed. In doing so, he has given Gov. Martin O'Malley, a longtime opponent of the death penalty, a golden opportunity. Mr. O'Malley should seize it and commute their sentences to life without the possibility of parole before he leaves office.