CNN The Lead With Jake Tapper December 15, 2014 21:30:00
Australian prime minister tony abbott is speaking now. let's take a listen. >> five other people, four hostages and a new south wales police officer have been injured. state and commonwealth agencies are investigating. understandably, there is a lot of speculation. but it will take time to clarify exactly what happened in martin place and why. what we do know is that the pepper traitor was well-known to state and commonwealth authorities. he had a long history of violent crime, infatuation are extremism and mental instability. we know that he sent offensive letters to the families of