Ryan Deitsch , 18, is a survivor of the shooting that happened one week ago at Marjory Stoneman Douglas High School in Parkland, Florida. Survivors took center stage at a town hall hosted by CNN on Wednesday, February 21. See quotes from them, as well as others in attendance. John Nowak/CNN Photo Illustration

Linda Beigel Schulman's son Scott Beigel was a geography teacher and cross country coach. He died in the school shooting. CNN Photo Illustration

Robert Schentrup's sister Carmen Schentrup was among the 17 killed in the shooting. Editor's note: An earlier version of this gallery incorrectly stated that Robert Schentrup was a senior at Marjory Stoneman Douglas High School. Schentrup recently graduated. John Nowak/CNN Photo Illustration

Cameron Kasky , 17, is a senior at Marjory Stoneman Douglas High School. John Nowak/CNN Photo Illustration