Michelle Obama To Have Sandy Hook Guest In Box At SOTU

WASHINGTON -- First lady Michelle Obama will have a heroic teacher who survived the Sandy Hook Elementary School shooting with her at Tuesday's State of the Union address when President Barack Obama is expected to address measures to curb gun violence in his speech.

A White House official confirmed to The Huffington Post that first-grade teacher Kaitlin Roig, 29, will be in the first lady's box.

During the Dec. 14 massacre, Roig ushered her students into a bathroom and blocked the door with a storage unit. She refused to unlock it even when the police came, fearing it was a hoax .

"I told them there were bad guys out there right now, we just had to wait for the good guys ," Roig told ABC's Diane Sawyer in an interview.

Additional guests of Michelle Obama include Apple CEO Tim Cook , NASA systems administrator Bobak Ferdowsi and 102-year-old Miami resident Desiline Victor , who waited in line for three hours to vote on Election Day.

Others touched by the country's tragic mass shootings also will be in attendance. Reps. Rosa DeLauro (D-Conn.), Elizabeth Esty (D-Conn.), and Gloria Negrete-McLeod (D-Calif.) will bring individuals from Newtown, while Reps. Diana DeGette (D-Colo.) and Ed Perlmutter (D-Colo.) will have relatives of a victim of the Aurora movie theater shooting.

The mother of Chicago shooting victim Hadiya Pendleton -- the young woman who performed with her school band at Obama's inauguration -- will be Rep. Brad Schneider's (D-Ill.) guest .

This story has been updated to provide more detail about Michelle Obama's guest from Newtown, Conn.