“Of all the songs about serial killers—the Decemberists’ “Shankhill Butchers,” Sufjan Stevens’ “John Wayne Gacy, Jr.”—few are sung from the perspective of their victims. Even fewer see the victim snatching the last word away from her murderer, assuming agency at the very moment she’s presumed to have none left. Zola Jesus’ “Soak,” the second new track from her forthcoming album Okovi, illuminates t”