That's all from us today, a day that began with a violent end to the 16 hour siege that held 17 people captive, and ended with a city united in mourning.

Thousands covered Martin Place in flowers and thousands have written notes of condolence on pieces of paper that the NSW Goverment has pledged they will bind together into books.

We celebrated the lives of the two hostages who died, Katrina Dawson and Tori Johnson. And we learned about the 15 survivors who came from all walks of life but will be bounded by this tragedy.

Also today, we learned more about gunman Man Horan Moris while Prime Minister Tony Abbott faced questions about why someone known to the Australian Federal Police and ASIO was not on the terror watch list.