Key Players: Gladys Zimmerman

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Background: Gladys is George Zimmerman's mother. She was a physical education teacher before working as a deputy court clerk in Virginia.

Involvement in the case: One year after Zimmerman was arrested in the shooting death of Trayvon Martin, Gladys penned a letter thanking the family's supporters, criticizing the media and saying that the "truth will finally be revealed to many" in court. She also started an online fund along with her husband, Robert Zimmerman Sr., to help pay for her husband's medical bills and their relocation.

Her letter:

Gladys Zimmerman's letter was written to coincide with the one-year anniversary of her son's April 11, 2012, arrest. He's accused of killing Martin, who was unarmed, in February 2012.

The letter was written in Spanish and translated by her son, Robert Zimmerman. He released it on his Twitter account.

Gladys Zimmerman says the day will "forever be remembered by the Zimmerman family as the day the justice system failed us as Americans." She describes what she calls a "false narrative" that was developed as the heavily publicized case unfolded.

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