Life is not fair.  

Some days that is more true than others, and this Saturday was one of those days. We've all heard by now about the horrific shooting in Arizona. Six people were killed and 14 wounded in what can only be described as a horrific tragedy. While we're all praying for U.S. Rep. Gabrielle Giffords and debating whether or not the tone of politics in the U.S. or the way we treat the mentally ill is responsible for this tragedy, I wanted to take a moment to remember one of the lives lost on that fateful day.

Of the six people who were killed on Saturday, one was a federal judge, one a U.S. marshall, and one a retired grandmother who loved to cook and volunteer at her local nursing home. And one was a 9-year-old girl whose young life was so full of promise yet had already been marked by tragedy.

I'm not trying to be overly dramatic. When I learned that Christina was born on Sept. 11, 2001, it sent a shiver down my spine. She was featured as one of 50 Sept. 11 babies in a book called "Faces of Hope." In a "Today" show interview, Christina's father, John Green, told Meredith Vieira that tragedies were the bookends of the young girl's life. "But the bulk of her life was wonderful and we loved every minute of it," he added.  

According to Christina's mother, Roxanna Green, the gravity of Christina's birth date did not elude the aspiring politician — it just served to fuel the young girl's interest in politics. Christina, who was in the third grade, had recently been elected to the student council at Mesa Verde Elementary School.  

She had told her parents that she wanted to attend Penn State to work in politics to help those less fortunate. Her mother said Christina also loved animals, singing, ballet and gymnastics. The granddaughter of Dallas Green of Phillies baseball fame, Christina was the only girl on her Canyon del Oro Little League baseball team. 

Christina Taylor Green died at the hospital an hour after she was shot at the Congress at the Corner event she had attended with a family friend.

Christina's funeral will be held on Thursday.

“I just want her memory to live on because she was a face of hope, a face of change, a face of us coming together as a country to stop the violence and hatred and the evil words.”  — Roxanna Green.

Rest in peace, Christina.