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It's a sad day in American history. Twelve people are dead after a gunman opened fire at an Aurora, Colorado movie theater during a screening of The Dark Knight Rises just after midnight yesterday.

Today, millions of Americans are mourning the loss of these innocent victims, including Teen Mom 2 star Kailyn Lowry.

"My heart goes out to the people in Colorado. #sosad," she posted on Twitter.

Her boyfriend, Javi Marroquin, shared his condolences as well:

"I'm sorry for those affected by what happened in Colorado last night. My thoughts & prayers are with you all!"

Amber Portwood's baby daddy, Gary Shirley, also jumped on Twitter to share some kind words:

"My heart goes out 2 all the families in Colorado affected by the shooting at the batman premiere last night 12 were killed more were injured."

Read more about the tragedy here and stay tuned to Wetpaint.com for late-breaking updates.


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