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Could a simple set of keys have saved one of the teachers gunned down during the shooting?

Lauren Rousseau was a substitute teacher at Sandy Hook Elementary School, where she was killed during Friday’s tragic shooting.

Many of the teachers at Sandy Hook locked their classroom doors when the school went into lockdown.  According to Rousseau’s family, she was not given a set of keys to lock her classroom door because she was a substitute teacher.

Substitute teacher, Lauren Rousseau, who was gunned down at Sandy Hook Elementary School.

That fact torments her father who now wonders if keys would have saved his daughter’s life.

Bullets actually ripped through Rousseau’s car, after piercing the walls and windows of the school.

Rousseau earned a master’s degree in education and had been searching since graduation for a permanent job.