World New Zealanders have turned in more than 10,000 guns after mass shooting in Christchurch August 12, 2019Ryan W. Miller, USA TODAYComments Off on New Zealanders have turned in more than 10,000 guns after mass shooting in Christchurch More than 10,000 firearms have be turned in as part of an effort to buy back guns after the deadly Christchurch shooting in March, police said.