Prosecutor says Jarrod Ramos, who killed five people at newspaper in 2018, received maximum sentence under law.
Robert Aaron Long appeared in court in Atlanta, after already pleading guilty to killing four people in Cherokee County.
State security commissioner says troops came under fire before forcing the assailants to withdraw.
Under pressure, Conservative Party leader Erin O’Toole reverses course on campaign promise to repeal 2020 weapons ban.
The Mexican government took the unprecedented step of filing a lawsuit against US-based gun manufacturers this month.
The Mexican government has filed a lawsuit to try to stop the flow of arms from the United States.
Police say the incident in the southwestern city of Plymouth has been contained and gunman is also dead.
Mexico is seeking compensation for damages, which are estimated at as much as $10bn, officials said.
Concern mounts over proliferation of 3D-printed weapons amid growing arrests across Europe.
Settlement is being offered in a lawsuit over how the rifle maker marketed the firearm to the public.
Shots erupted outside the ceremony for Jovenel Moise as hundreds of protesters clashed with police.
Supporters of Jovenel Moise interrupted the mass as they cried out and accused Haiti’s elite of killing the president.
The verdict means Jarrod Ramos, 41, will be sentenced to prison, not a maximum-security mental health facility.