Nikolas Cruz, 24, pleaded guilty a year ago to murdering 14 students and three staff members and wounding 17 others at Parkland’s Marjory Stoneman Douglas High School

Defense loses attempt to redact Nazi symbols by arguing that Nikolas Cruz's killing of 17 people at Parkland high school was not driven by bigotry

Nikolas Cruz pleaded guilty to 17 counts of murder in October; hearings expected to last four months

Prosecutors say Nikolas Cruz's Nazi symbols, racist posts, cruelty to animals show he's not mentally ill, was not impaired when he killed 17 people in Florida in 2018

Latest massacre in Texas is part of a persistent, bloody cycle of classroom mass shootings in the country

'Nowhere else does that happen except here in the United States...It is a choice,' says Senator Chris Murphy; data shows mass shootings on the rise

Nikolas Cruz already pleaded guilty so only decision left is death penalty versus life without parole; 1 prospective juror cried, others had conflict of interest or vacation plans

Fred Guttenberg, whose daughter was killed in 2018 mass shooting, says he lost composure after US president claimed 2nd Amendment was 'under siege'

Kyle Kashuv met with Trump and spoke at the NRA, then had his spot in the Ivy League rescinded for making anti-Semitic and bigoted remarks two years ago

Anniversary of 1999 high school mass murder marked days after teenager, whose obsession with the shooting set off school closures and a manhunt, was found dead