India, March 18 -- A Colorado woman who survived the Columbine High School shooting has died following a long battle with cancer. Karissa Rund, 40, survived the deadly shooting more than 25 years ago, which resulted in the tragic deaths of 13 people. Gunmen Eric Harris, 18, and Dylan Klebold, 17, also injured more than 20 others, before both of them died by suicide.

Rund was diagnosed with Stage IV colon cancer at the age of 31, she said on her website. Her mother died of breast cancer when Rund was just 11. When Rund was 14, she survived the Columbine massacre.

She wrote on her website, "When I was 20, I became a war widow when my husband and high school sweetheart was killed in action in Iraq."

"If you have trouble believing all that...