Jack Wilson poses for a photo at a firing range outside his home in Granbury, Texas. Wilson, who trains the volunteer security team of the West Freeway Church of Christ, killed a man who fatally shot two people there on Dec. 29. Jake Bleiberg/AP hide caption
At a press conference in Japan on Monday, President Donald Trump blamed mental illness, not guns, for the Texas massacre. Anadolu Agency/Getty Images hide caption
A police officer ties off crime scene tape near a small memorial close to the First Baptist Church of Sutherland Springs on Tuesday in Sutherland Springs, Texas. On Sunday, a gunman, Devin Patrick Kelley, killed 26 people at the church and wounded 20 more when he opened fire during a Sunday service. Scott Olson/Getty Images hide caption
President Trump speaks as South Korean President Moon Jae-in looks on in a joint news conference at the Blue House in Seoul, South Korea, on Tuesday. Andrew Harnik/AP hide caption
The men who chased down the Texas shooter — Stephen Willeford (right) and Johnnie Langendorff — attend Monday's vigil for the victims of the First Baptist Church shooting in Sutherland Springs, Texas. David J. Phillip/AP hide caption
Newspaper photographers look on as the sun rises over the First Baptist Church in Sutherland Springs, Texas, the site of a mass shooting during a Sunday service. Scott Olson/Getty Images hide caption
Law enforcement officials gather Monday at the scene of a deadly shooting the previous day at the First Baptist Church of Sutherland Springs in Texas. Eric Gay/AP hide caption