JACKSONVILLE, Fla. (AP) â€" A teacher fired from a private school in Florida on Tuesday returned to the campus with a gun hidden in a guitar case and shot the headmistress to death before committing suicide while school was in session, authorities said. No students were hurt. Officers responded to the Episcopal School of Jacksonville at 1:23 pm Tuesday after receiving reports of a person with a gun, and the school was placed on lockdown. When officers arrived, Dale Regan, head of the school, and the gunman were found dead, Undersheriff Dwain Senterfitt said. When the lockdown began Tuesday afternoon, many students didn't immediately know it was a real emergency. "We were in class and the bell rang, but it wasn't time for class to end," ninth-grader Gracie Hamilton said. "Then it rang again, like a lockdown alert. At first, no one was worried, because we always have lockdown drills. But then you could tell our teacher was worried, and she locked the doors and turned off the l! ights. And it was time to really keep quiet." After a short time, Hamilton said students began receiving text messages from friends saying there had been shots fired. "I was like, oh my gosh," Hamilton said. "Everybody was worried." The sheriff's office identified the gunman as 28-year-old Shane Schumerth. He was a graduate of Purdue University and taught Spanish, according to a 2010 press release from the school announcing he had been hired. A man who answered the phone at a listing for Schumerth's
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