Marjory Stoneman Douglas High School August 1, 2022 5:43 pm Mother Kelly Petty Gives Victim Impact Statement at Parkland Shooter's Sentencing Trial Kelly Petty is the mother of Alaina Petty, who was killed in the 2018 mass shooting at Marjory Stoneman Douglas US & World Videos 3:05 Families create AI-generated voices of gun violence victims to send message to lawmakers 3:11 Day of service, memorials commemorate 17 victims on 6th anniversary of Parkland shooting 3:45 Oliver family speaks 6 years after son killed in MSD tragedy 3:26 Federal officials tour MSD to discuss school safety 0:31 Parkland parents sue United States over gun policy