Fla. school murder-suicide shooter identified as fired Spanish teacher Shane Schumerth

(CBS/AP) JACKSONVILLE, Fla. - The shooter in Tuesday's murder-suicide at a Jacksonville school has been identified as a former Spanish teacher at the Episcopal school.

Pictures: Murder-suicide at Florida school

Authorities say 28-year-old Spanish teacher Shane Schumerth was fired Tuesday before returning to the school in the afternoon carrying an assault rifle in a guitar case, according to CBS affiliate WTEV. He allegedly killing 63-year-old headmistress Dale Regan then committed suicide.

Details about Schumerth's firing were not immediately available.

The gunman's father, Steve Schumerth of Culver, Ind., told the Florida Times-Union his family is in shock. He says the family sends prayers to the Episcopal School family.

Regan had worked at the school for more than 30 years. Schumerth was a 2007 graduate of Purdue University.

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March 6, 2012 - Fla. Murder-Suicide Update: Veteran educator shot dead at Jacksonville's Episcopal High