Joel Contreras, left, an Operation Peacemaker Fellow, and Joseph McCoy, a Neighborhood Change Agent with the Office of Neighborhood Safety, in Richmond, Cali. Fellows receive counseling, social services, a job and cash if they agree to stay in contact everyday and stay out of trouble. Richard Gonzales/NPR hide caption

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To Reduce Gun Violence, Potential Offenders Offered Support And Cash
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A woman places flowers at a Cracker Barrel restaurant where people were gunned down in the parking lot amid an hours-long shooting spree in Kalamazoo, Mich. Tasos Katopodis/Getty Images hide caption

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A mugshot and rap sheet of Jason Dalton, who police say went on a shooting spree that lasted for hours in Kalamazoo, Mich., on Saturday. Kalamazoo Public Safety hide caption

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Jesse Mackey, an NRA member, has taught concealed-carry classes out of his living room in Xenia, Ohio, for a decade. Lewis Wallace/WYSO hide caption

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Gun Rights Supporters Carry On After Obama's Executive Actions
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"We maybe can't save everybody, but we can save some," President Obama said at the White House Tuesday, discussing his plans to reduce gun violence with tighter background checks and other measures. He was joined onstage by Vice President Biden and people whose lives have been affected by gun violence. Carolyn Kaster/AP hide caption

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Mourners gather for the funeral of Harris County Deputy Darren Goforth, killed as he pumped gas in a surprise attack in August. According to new national statistics, 42 police officers were shot and killed in 2015. Aaron M. Sprecher/Getty Images hide caption

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Number Of Police Officers Killed By Gunfire Fell 14 Percent In 2015, Study Says
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Guns seized by the police are displayed during an Oct. 2015 news conference in New York. Seth Wenig/AP hide caption

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The U.S. Has A Mass Shooting Epidemic, But No Government Database On Gun Violence
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While serving in Congress, Jay Dickey sponsored legislation that effectively restricts spending for research on firearms deaths. Spencer Tirey/AP hide caption

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Congress Still Limits Health Research On Gun Violence
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Flowers are placed near the site of the San Bernardino shooting that took place Wednesday. Groups that keep tabs on mass shootings in the U.S. have different definitions of a mass shooting, resulting in wildly different figures. Justin Sullivan / Getty hide caption

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Nasya Fair and her son Korbyn, 4, look at a growing memorial for the Colorado Springs, Colo., shooting victims. Colorado and California are the latest states at the center of the gun control debate. Brent Lewis/Denver Post via Getty Images hide caption

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From Colorado To California, The Gun Control Debate Has Become Personal
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