The student was on campus at Florida's Marjory Stoneman Douglas High School when 17 people were killed by gunman Nikolas Cruz previous year.
The second student's age, sex and name were not immediately released and police are still investigating the case.
Florida school shooting survivor Sydney Aiello takes her own life after suffering survivor's guilt
On Sunday, David Hogg, a survivor of last year's shooting who has since become a prominent gun violence activist, called for officials to do more to prevent such deaths.
Amazon to Compete with Google and Facebook with its Own Mobile Ads
Amazon is requiring a $35,000 ad budget to run the spots at 5 cents per view to run the ads for 60 days, one person said. Still, this is expected to be a slow roll-out to see if it disrupts customers' shopping experience, so there's that.
"It's awful what happened". Her mother, Cara Aiello, said that her daughter hesitated to ask for help, and she hopes that her story can help others get the support that they need.
Warning signs include changes in appetite and behavior; sleeping too much or not at all; apathy and fatigue; trouble concentrating or being indecisive; withdrawing from family, friends and social activities; and giving away prized possessions and saying goodbye to friends.
The first priority would be "communicating to parents the need to talk to their children, and students to talk to each other", about mental health and suicide prevention, she said.
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If you think you may have been exposed but you have no symptoms contact 8-1-1 or your local health centre to speak to a nurse. The virus can live for up to two hours in the air where the infected person was present, according to the health department.
Sydney was a close friend of Meadow Pollack, who was killed in the shooting.
Sydney Aiello survived the Marjory Stoneman Douglas High shooting. Meadow and Sydney were friends for a long, long time, ' he said. "Killing yourself is not the answer".
Guaido's aide arrested for plotting terrorist attacks on Venezuelan officials - interior minister
He also acknowledged that not all countries in the region agree with the USA call for Maduro's ouster. Extra shipping containers and concrete blocks have been moved into place on the bridge.