New Zealand shooting: What we know-
-Police said 49 people are dead after shootings at two mosques.
-At least 20 others were being treated for gunshot wounds and listed in serious condition.
-A suspected shooter, an Australian national, has been charged with murder.
-Two others, whose roles remain unclear, are in custody.
-A man who claimed responsibility for the attack wrote a manifesto referencing "white genocide" driven by "mass immigration."
-The manifesto said guns were used to stoke the 2nd Amendment debate in the U.S., and called President Trump a "symbol of renewed white identity"