Parkland

Singer Jennifer Hudson sings "Amazing Grace" in tribute to Aretha Franklin, who received a special music citation during the 2019 Pulitzer Prize winners awards luncheon at Columbia University, Tuesday May 28, 2019, in New York. (AP Photo/Bebeto Matthews)

FILE - In this Feb. 14, 2019, file photo, people gather around the "Temple of Time" in honor of the 17 that were killed during the Marjory Stoneman Douglas High School shooting in 2018 in Coral Springs, Fla. The temple built as a memorial to the 17 victims of a Florida high school mass shooting is to be burned to the ground in a symbolic gesture of healing. (AP Photo/Wilfredo Lee, File)

FILE - In this Saturday, Oct. 20, 2018 file photo, ten crosses honoring the 10 people killed in a shooting at Santa Fe High School were dedicated during a ceremony in Santa Fe, Texas. Nearly a year after the mass shooting killed eight students and two substitute teachers, Texas lawmakers are close to passing new measures that they say would harden campuses. They include measures that would arm more school personnel, beef up security plans and boost student mental health resources. But there's no push for new restrictions on the purchase or possession of guns. (Kelsey Walling/The Galveston County Daily News via AP, File)

FILE - In this Aug. 15, 2018 file photo, Florida school shooting suspect Nikolas Cruz listens during a status check on his case at the Broward County Courthouse in Fort Lauderdale, Fla. The public defenders representing Cruz who is charged with the Florida high school massacre are set to ask a judge to remove them from the case. The Broward County Public Defender's Office will ask Judge Elizabeth Scherer on Wednesday, May 1, 2019, to order Cruz to hire a private attorney with the $432,000 he may receive from his late mother's life insurance policy. (Amy Beth Bennett/South Florida Sun-Sentinel via AP, Pool, File)

FILE - In this May 1, 1999, file photo, demonstrators gather on the Colorado State Capitol grounds in Denver, Colo., to protest against the National Rifle Association's annual meeting, which is being held in the city. Data shows that such shootings are less frequent and with fewer killed than in the years that preceded Columbine. Still, Americans worry about how safe schools are. (AP Photo/Eric Gay, File)

Staff of the South Florida Sun Sentinel celebrate their bittersweet honor Monday, April 15, 2019, in Deerfield Beach, Fla., after winning the Pulitzer Prize for Public Service. The newspaper won for its coverage of the Parkland school shooting. (Carline Jean/South Florida Sun-Sentinel via AP)

Lisa and Richard Olson, who's son was injured during last year's Parkland school shooting, look on during a news conference, Wednesday, April 10, 2019, in Fort Lauderdale, Fla. Survivors and family members of the slain victims of the school shooting in Parkland, Florida, sued the school board, sheriff's office and others for negligence Wednesday, saying the agencies initially had promised a financial settlement but secretly worked behind the scenes to prevent a deal. (AP Photo/Wilfredo Lee)