Dawn Hochsprung, 47
Hochsprung became principal of Sandy Hook in recent years and by all accounts, was devoted to the students and teachers at her school.
"When we had our orientation, you could tell she loved her job," Brenda Lediski, a parent, told ABC News by phone.
Kristin Larson, a former PTA secretary, told the Boston Globe that Hochsprung was "always enthusiastic, always smiling, always game to do anything."
"When I saw her at the beginning of the school year, she was hugging everyone," Larson said.
The terrifying moment Hochsprung came into contact with the gunman were heard over the school intercom and may have saved lives.
It's not clear whether the intercom was turned on purposefully to alert the school's staff to the menace or whether the intercom was on for morning announcements.
Either way, it caught the initial moments of Adam Lanza's lethal fury and gave teachers and others life saving moments to lock their doors and try to hide their children.
(NEWTOWN BEE/Eliza Hallabeck /AP Photo)