School Violence

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In this Aug. 9, 2019, photo, Democratic presidential candidate Montana Gov. Steve Bullock speaks at the Iowa Democratic Wing Ding at the Surf Ballroom in Clear Lake, Iowa. As a Democratic politician in deep-red Montana, Bullock has long searched for a middle ground on guns. Now a presidential candidate in a party pushing hard for new gun-control laws, he still is. (AP Photo/John Locher)

A TuffyPack ballistic shield sits on top of a backpack it will be inserted into before a shooting demonstration at the Shiloh Shooting Range, Friday, August 9, 2019, in Houston. The company produces some bullet-resistant backpacks but the bulk of the business is in removable ballistic shields that are inserted in backpacks. (AP Photo/Michael Wyke)

Demonstrators hold a banner to protest the visit of President Donald Trump to the border city after the Aug. 3 mass shooting in El Paso, Texas, Wednesday, Aug. 7, 2019. Trump headed to El Paso, after visiting Dayton, Ohio on Wednesday to offer a message of healing and unity, but he will be met by unusual hostility in both places by people who fault his own incendiary words as a contributing cause to the mass shootings. (AP Photo/Andres Leighton)

Mourners write on Keyla Salazar's casket during the 13-year-old's funeral on Tuesday, Aug. 6, 2019, in San Jose, Calif. Salazar and two others were killed when a gunman opened fire at the Gilroy Garlic Festival July 28. (AP Photo/Noah Berger)

Ohio Gov. Mike DeWine delivers a statement with Lt. Gov. Jon Husted, left, and First Lady Fran DeWine, right, following the Dayton Mass Shooting on Tuesday, Aug. 6, 2019 at the Ohio Statehouse in Columbus, Ohio. Facing pressure to take action after the latest mass shooting in the U.S., DeWine urged the GOP-led state Legislature Tuesday to pass laws requiring background checks for nearly all gun sales and allowing courts to restrict firearms access for people perceived as threats. (Joshua A. Bickel /The Columbus Dispatch via AP)

The firearm used by the shooter Connor Betts, 22, is projected on a screen during a press conference Sunday, Aug. 4, 2019, about a mass shooting that left left multiple people dead and 26 injured along the 400 block of E. Fifth Street, in Dayton, Ohio. (Albert Cesare/The Cincinnati Enquirer via AP)

FBI personnel examine an area around an inflatable slide at Christmas Hill Park, the scene of Sunday's deadly shooting, Monday, July 29, 2019, in Gilroy, Calif. Authorities on Monday were searching for answers to why 19-year-old Santino William Legan opened fire on a popular food festival at the park less than a mile from his parents' home in California. (AP Photo/Noah Berger)

FILE - In this April 27, 2000, file photo, convicted Westside Middle School shooter Andrew Golden, 13, is escorted from a back door of the Craighead County Courthouse in Jonesboro, Ark. Golden, who legally changed his name to Drew Grant, has reportedly died in a two-vehicle crash in northeastern Arkansas on Saturday, July 28, 2019. Grant was 11 years old when he and a teenager fatally shot four students and a teacher at an Arkansas middle school more than 20 years ago. He was released in 2007. (Rodney Freeman/The Jonesboro Sun via AP, File)

FILE - In this March 4, 2019 file photo Washburn defensive back Corey Ballentine runs a drill during the NFL football scouting combine in Indianapolis. The New York Giants cornerback who was wounded hours after being drafted in an April shooting that claimed the life of his Washburn University teammate is trying to make a career in the NFL not only for himself but also his late best friend. "There have been a lot of highs and lows," Ballentine said Sunday, July 28, 2019 before the Giants finished their first week of training camp. (AP Photo/Darron Cummings, file)