Original sentence: In particular, his involvement in the JonBenét Ramsey murder case aroused criticism when it emerged that the scholar had offered his services to both sides, initially lobbying for Patsy Ramsey's innocence, but then going on a few months later, having been spurned by Ramsey's lawyers and hired by the police, to argue for the opposite verdict
Edited sentence: In particular, his involvement in the JonBenét Ramsey murder case aroused criticism when it emerged that the scholar had offered his services to both sides, initially lobbying passionately for Patsy Ramsey's innocence, but then going on a few months later, having been spurned by Ramsey's lawyers and hired by the police, to argue dispassionately for the opposite verdict