Seventeen people died in the Valentines Day 2018 school shooting -- and who could have foreseen that there would be another death 13 months later? This is truly heartbreaking.
Sydney Aiello, survivor of Parkland school shooting, kills herself
Aiello's mother said her daughter suffered from survivor's guilt and had recently been diagnosed with post-traumatic stress disorder.
https://www.nbcnews.com/news/us-news...erself-n986266