The school, in Parkland, was the site of a shooting on 14 February 2018 in which 17 people were killed and 17 wounded.
The South Florida Sun Sentinel newspaper quoted Tyler Reik, a spokesman for Coral Springs police, as saying that out of respect for the family we are not going to release the name. Its a juvenile.
Reik reportedly added: I know he attended Stoneman Douglas. I cant tell you if its related to the Parkland shooting. We dont know the reasoning behind it. Its still an ongoing investigation. It hasnt even been confirmed as a suicide.
The Miami Herald reported that a police source said the death was an apparent suicide and happened on Saturday night.
It was the second death of a Parkland survivor in about a week. Sydney Aiello, 19, a survivor of the shooting who was given a diagnosis of Post-Traumatic Stress Disorder or PTSD, died last weekend. Her funeral was held on Friday.
On Sunday David Hogg, the Parkland pupil who became a prominent leader of the March for Our Lives movement for gun control reform, tweeted: How many more kids have to be taken from us as a result of suicide for the government / school district to do anything? Rip 17+2.
In the UK, Samaritans can be contacted on 116 123 or email email@example.com. In the US, the National Suicide Prevention Lifeline is 1-800-273-8255. In Australia, the crisis support service Lifeline is 13 11 14. Other international suicide helplines can be found at www.befrienders.org