S05E08 - The Man Who Liked Lions

In Rome, the Saint's due to meet Tony, a journalist friend anxious to tell him about a man who 'liked lions' but Tony's found dead - stabbed with a knife carved with a lion's head. Claudia, Tony's girlfriend, tells Templar about Tony's diary, which should contain a clue as to the reason for his murder, but other addressees in the diary are also dying off. Who's killing these people - and why?