(Meredith) -- A second student who survived the Parkland school shooting died by suicide within one week, Coral Springs police confirmed to the Miami Herald.

Police said 16-year-old Calvin Desir was a current sophomore at Marjory Stoneman Douglas (MSD) High School, where a mass shooting killed 17 people on Valentine's Day in 2018.

Investigators said Desir died from an apparent suicide Sat., March 23. 

Coral Springs Police Officer Tyler Reik confirmed the teen's identity on Wednesday. The circumstances surrounding his death are unclear.

Desir's family set up a GoFundMe page to held with funeral expenses. On the page, his older sister wrote:

I can tell you firsthand that he was one of a kind, very soft spoken, and never once hurt a fly. If you ever asked him to do the simplest task, he was right on it. His selflessness and quick action to help others is something that we all deeply admired. Calvin Desir was truly special to us all and will forever live on in our hearts. We love you Calvin! 

Just one week before, on Sat., March 17, another MSD shooting survivor died by suicide. 

Sydney Aiello, 19, was a recent MSD graduate who was at the school the day of the mass shooting. 

Aiello's mother said her daughter took her own life, that she was close friends with shooting victim Meadow Pollack, that she felt survivor's guilt and was diagnosed with post-traumatic stress disorder (PTSD).

If you or someone you know is at risk of suicide, you can call the Suicide Prevention Hotline at 1-800-273-8255, 24 hours a day, seven days a week. You can also visit their website here.

Copyright 2019 Meredith Corporation. All rights reserved.

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