As a student at Marjory Stoneman Douglas High School, Jaclyn Corin was the junior class president at the time of the shooting in 2018. Her close friends Joaquin Oliver and Jaime Guttenberg were killed; she had once tutored the alleged gunman and former student at the school, Nikolas Cruz. During the shooting, Corin was locked in with other classmates for several hours, emerging with hands up as instructed by the police SWAT units.