mass shooting

Virginia Gov. Ralph Northam on Tuesday called a special legislative session on gun violence, citing last week’s deadly mass shooting that claimed 12 lives.

Updated at 7:30 a.m. ET Saturday

New Zealand Prime Minister Jacinda Ardern said she would seek a change in her country's gun laws after at least one man opened fire during afternoon prayers Friday and killed at least 49 people at two mosques in Christchurch.

"Our gun laws will change," Ardern declared in a news conference Saturday morning local time.

The violent attack struck at the very heart of New Zealand, a country that prides itself on being both peaceful and diverse.

Antonio Grosz / Unsplash

A study in the medical journal BMJ found a strong association between the strength of a state’s gun laws and its rate of mass shootings.

Paul Reeping is an epidemiologist with Columbia University and first author on the paper. He says researchers had already looked at the relationship between gun laws and outcomes like suicide or homicide.

Courtesy Thornton Police Department

The man who shot and killed three people at a Thornton Walmart last year has been sentenced to three life terms in prison without parole, plus an additional 48 years for firing bullets into the Walmart.

Scott Ostrem pleaded guilty to three counts of first degree murder earlier this month in order to avoid the possibility of receiving the death penalty.