Parkland school shooting

A year after Parkland shooting, activists say 'we're not done yet... not going away'

On "This Week," Martha Raddatz reflects on the mass school shooting that killed 17 people in Parkland, Florida, one year ago.

Parkland students pay tribute to shooting victims

Thursday marks the first anniversary of the deadly shooting.

Mother of Parkland victim remembers the life of her daughter Alyssa Alhadeff

Lori Alhadeff pens a Valentine's Day heartfelt letter to her daughter on the first anniversary of the Parkland massacre.

Parkland massacre remembered one year later

Memorials are taking place to commemorate the Marjory Stoneman Douglas High School shooting which claimed the lives of 17 people.

Parkland students pay tribute to shooting victims through community service

Memorial service on Parkland shooting anniversary

Thousands will hold a moment of silence to honor the 14 students and three staff members killed one year ago at Marjory Stoneman Douglas High School.

Parkland: 1 year later

Florida Gov. Ron DeSantis is asking for a grand jury to review school safety statewide. ABC News' Kenneth Moton reports.

Parkland shooting 1 year later: Remembering the 17 victims of the school massacre

Seventeen students and staff were killed in the Stoneman Douglas massacre.

Parkland survivors, victims' parents reflect on year of progress since massacre

One year after the deadliest school shooting in U.S. history, some Marjory Stoneman Douglass student survivors and victims' parents turned their pain into activism to fight for stronger gun laws.

Parkland students, victims' parents on their healing and activism one year after massacre: 'We are not going away. Too many people are dying'

"It’s like where we started and the fact that we are here talking to you almost a year later, and we are still going and growing -- it means the world," said one student.

Parkland mom pens heartbreaking letter to slain daughter 1 year after school massacre

Parkland victim's dad, lawmaker clash at gun-violence hearing

During the hearing, Rep. Matt Gaetz, R-Fla., said illegal immigration, not guns, is a major factor behind acts of public violence that have plagued the nation over the past two decades.

Parkland victim's father and congressman have heated exchange at gun-violence hearing

The father of a Parkland shooting victim clashed with a Florida Congressman at the first congressional hearing on gun violence prevention in almost a decade.

Man charged after family, friends of Parkland victims threatened on Instagram

A man was charged in Florida with threatening to kidnap and intimidate relatives and friends of students who were killed in the Parkland high school mass shooting.

Florida sheriff suspended over Parkland massacre

The sheriff has come under withering criticism for his handling of the massacre.

Embattled Florida sheriff suspended over handling of Marjory Stoneman Douglas High School shooting

New video and details emerge from Parkland shooting

Surveillance video of Nikolas Cruz inside Marjory Stoneman Douglas High School during the massacre was released along with a report highlighting security failures.

Security failures in Parkland school shooting included unlocked doors, no PA system

A commission tasked with investigating the Parkland high school massacre in Florida highlighted security failures.

David Hogg, Parkland mass shooting survivor and student activist, to attend Harvard University

Parkland shooting survivor and student activist David Hogg was mocked for being rejected from UCLA. Now he'll be attending Harvard.

After Parkland, Trump school safety commission rejects age limits for gun buys

The Trump administration has released a report on school safety from a commission created in the wake of the high school shooting in Parkland, Florida.

School district pulls assignment asking students whether suspected Parkland shooter Nikolas Cruz deserves to die

Coral Glades High School is a mere 10-minute drive away from Marjory Stoneman Douglas High School.

School district pulls assignment asking students whether Parkland shooter should die

Coral Glades High School is a mere 10-minute drive away from Marjory Stoneman Douglas High School.

Why AR-15-style rifles are popular among mass shooters

“The AR is the most popular rifle platform in the U.S.,” an expert said.

Parkland shooting survivors-turned-activists: 'We are the largest voting bloc in this country'

The young activists who inspired the March For Our Lives for gun reform are encouraging people their age to vote.

Parkland students speak out about their new book

Emma Gonzalez, Matt Deitsch and Delaney Tarr appear live on "GMA" to discuss their new book and their movement to encourage young people to vote.

Parkland mom who lost daughter wins seat on county school board

Florida vote first test for Delaney Tarr and Parkland's anti-gun violence activists

Parkland students return to school six months after deadly shooting

ABC News' "Nightline" spoke with Brooke Harrison, who returned to classes at Marjory Stoneman Douglas High School, where 17 people were killed in a shooting on Feb. 14, 2018.

Marjory Stoneman Douglas High School students start new school year

Six months after deadly shooting students in Parkland, Florida return to a new normal.

First day of school in Parkland, Florida

Marjory Stoneman Douglas High School students start a new year of school after a tragic shooting last February

'Bittersweet day' as Stoneman Douglas students return to school 6 months after mass shooting: Superintendent

Stoneman Douglas' 1st day back is 'bittersweet,' superintendent says

"Everyone's glad to get back and be reunited," Broward County Schools Superintendent Robert Runcie said at a news conference Wednesday morning.

Parkland survivor Lauren Hogg on first day of school: 'It's never going to be normal again’

'Kill me': Parkland shooter's alleged confession to police released

Nikolas Cruz described a so-called demon in his head.

Video of the confession by accused Parkland school shooter released

He spoke to a Florida detective about hearing a demon in his head for years.

Parkland suspect's alleged video confession is released

Nikolas Cruz told the detective he'd attempted suicide and had heard a demon voice in his head for years.

Parkland shooter's alleged confession to police released

Authorities have yet to release details on why Nikolas Cruz allegedly stormed into Marjory Stoneman Douglas High School with an AR-15 and opened fire.

Court orders release of Parkland school shooting security camera footage

A Florida appeals court Wednesday ruled that a trove of security camera video footage from the site of the February school mass shooting must be released.

2 Stoneman Douglas campus monitors fired in the wake of February massacre

David and Lauren Hogg talk about becoming activists

The Parkland school shooting survivors appear live on "GMA" to discuss the #NeverAgain movement and their new book.

Parkland survivors keep memory of victims alive

Parkland survivors keep memory of victims alive

Gabby Giffords joins Parkland activists at Chicago rally kicking off teens' 'Road to Change' initiative

The Chicago rally kicked off the “March for Our Lives: Road to Change” tour.

Stoneman Douglas drama students perform at Tony Awards

They delivered a powerful performance just minutes after their teacher was honored for her heroism during the school shooting. ABC News' Kendis Gibson reports.

Parkland theater kids perform 'Seasons of Love' at the 2018 Tony Awards

Survivors of the school shooting performed at Broadway's biggest night.

Parkland school security monitor describes moment he saw shooting suspect

Andrew Medina told authorities that Nikolas Cruz walked into Marjory Stoneman Douglas High School "with a purpose."

Officer who confronted Santa Fe gunman on road to recovery

John Barnes was hospitalized in critical condition after the May 18 shooting.

Parkland students, families fight for change in honor of those lost: Part 2

Seniors David Hogg, Ariana Ortega and others have been fighting for new gun safety legislation and the parents of seniors Joaquin Oliver and Meadow Pollack started non-profits in their memory.

For Parkland seniors, families, graduation marks the start of a new path: Part 1

The events of Feb. 14, 2018, forever changed the lives of Marjory Stoneman Douglas High School students and the families who lost loved ones in the shooting.

With graduation over, where do Parkland high school seniors, their families go from here

As the Parkland community vows to continue fighting for change, many acknowledge the unmistakable reality that they have been forever altered.

'Swatting' hoax reported at home of Parkland teen activist David Hogg; 'It's not going to take our focus,' he said

A hoax call to police was reported Tuesday morning at the Florida home of Parkland activist David Hogg.