The second, Cardinal Lamassé, is murdered in St. Peter's Square, his lungs punctured and branded with "Air". Vittoria comes to suspect the Pope was actually murdered via an overdose of tinzaparin and this is confirmed when McKenna secretly inspects the body in her presence. Langdon, Olivetti, and Vincenzi eventually identify the Santa Maria della Vittoria as the altar of fire, finding Cardinal Guidera burning to death, branded with “Fire”. The assassin appears, killing Olivetti and Vincenzi, before escaping to drown Cardinal Baggia (Marc Fiorini) in the Fontana dei Quattro Fiumi. Langdon intervenes and rescues Baggia with the help of bystanders. Baggia tells Langdon he was held with the preferiti in Castel Sant'Angelo.