FILE - In this April 28, 1997 file photo, families and friends gather around the memorial at the old convict settlement for a minute's silence at a service in memory of the 35 people ki

 

              FILE - In this April 28, 1997 file photo, families and friends gather around the memorial at the old convict settlement for a minute
FILE - In this April 28, 1997 file photo, families and friends gather around the memorial at the old convict settlement for a minute's silence at a service in memory of the 35 people killed, on the first anniversary of a rampage there by lone gunman Martin Bryant, in Port Arthur, Tasmania. Supporters of gun control often cite Australia's dramatic response to a 1996 shooting spree in the southern state of Tasmania that killed 35 people. The slaughter sparked outrage across the country and within 12 days federal and state governments had agreed to impose strict new gun laws, including a ban on semi-automatic rifles like the Colt AR-15 used by the Tasmania killer. (AP Photo/Leigh Winburn, Pool-File)