Thousands gathered at Pine Trails Park on Thursday, Feb. 15, 2018 for a candlelight vigil in honor of the 17 victims of the mass shooting at Marjory Stoneman Douglas High School in Parkland, Florida. Nicole Raucheisen/Naples Daily News

On Sunday, hundreds of students and families returned to Marjory Stoneman Douglas High School to gather their belongings and visit the campus for the first time since the Valentine's Day massacre.