Kaitlin Carbocci was at work when she received these chilling messages from her sister Hannah, 17, who was on lockdown inside Marjory Stoneman Douglas High School in Parkland, Florida, as a gunman walked the halls. Kaitlin Carbocci Kaitlin Carbocci Kaitlin Carbocci Kaitlin Carbocci Kaitlin Carbocci Kaitlin Carbocci Kaitlin Carbocci Prev Next