These are the victims of last year's deadly Parkland shooting

• A deadly mass shooting at the Marjory Stoneman Douglas High School in Parkland, Florida, killed 17 people on February 14, 2018.
• A gunman armed with an AR-15 opened fir on campus, fatally shooting 14 students and three staff members, and injuring 17 others.
• The victims' friends, family members, and classmates have sought to share stories about their lives in the wake of the shooting.

Thursday marked the first anniversary of a mass shooting at the Marjory Stoneman Douglas High School in Parkland, Florida.

After a gunman armed with an AR-15 opened fire on campus, 17 students and staff members were killed. In the wake of the shooting, the relatives and friends of the victims have often turned to activism in an effort to honor those who died — but they've also sought to share stories and memories of their loved ones.

Here are the victims of one of the deadliest mass shootings in America.

Alyssa Alhadeff, 14

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Alhadeff was a star soccer player and known for her work volunteering at homeless shelters. She loved her debate class and spending time at the beach. Her friends remembered her for her smarts, kindness, and contagious laugh.

Her mother, Lori Alhadeff, recalled in a recent open letter the moment she learned a shooting had occurred at the high school.

"I knew you were gone," she wrote. "You were with me. I knew it."

Sources: The Miami Herald, The South Florida Sun-Sentinel, and dearworld.org

Scott Beigel, 35

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Beigel was a beloved coach, summer-camp counselor, and a first-year geography teacher. He was killed when the Parkland shooting first broke out, as he tried to rush students back into his classroom.

He was known for his sense of humor and the honesty he brought to the cross-country runners he coached.

"As soon as we met Coach Beigel, we knew it was going to be a good year," Alyssa Fletcher told Runner's World.

Sources: The Miami Herald, CNN, Runner's World

Martin Duque Anguiano, 14

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Duque was a dedicated member of the Junior Reserve Officers' Training Corps, who aspired to one day become a Navy SEAL. His family remembered him for his kindness and caring nature.

"He was a very funny kid, outgoing and sometimes really quiet. He was sweet and caring and loved by all his family. Most of all he was my baby brother," his brother Miguel wrote on a fundraiser for funeral expenses last year.

Sources: The Miami Herald, GoFundMe