Star React To Shooting At Dark Knight Rises Screening

Access Hollywood
Chris Evans at 'Marvel's The Avengers' Press Conference at the Four Seasons Hotel in Beverly Hills on April 13, 2012 -- Getty Premium

A mask-wearing gunman opened fire in a movie theater in Aurora, Colorado at a midnight screening of "The Dark Knight Rises" early Friday morning. The attack claimed the lives of 12 people and injured at least 50, according to authorities.

News of the senseless shooting spree went viral almost immediately and many stars shared their sadness and condolences for the victims' families on Twitter.

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Here is what they wrote:

"Captain America" star Chris Evans: "What the hell is happening?? my heart is completely shattered. all of my thoughts and prayers are with the people of aurora.

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Ryan Seacrest: "Thinking about the families who were affected by this horrible incident in Colorado. My thoughts and prayers are with you all."

Alyssa Milano: "No. Colorado shooting. My heart aches. Prayers for the victims and families."

Donald Trump: "At least 12 dead and 50 wounded in Colorado-bring back fast trials & death penalty for mass murderers & terrorists."

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Whoopi Goldberg: "Hearts and Prayers to all affected by the craziness in Colorado."

Nancy Grace: "Praying for the victims & their families."

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Erin Andrews: "Thinking abt everyone in Colorado.."

Tyrese Gibson: "These are really the end of our days. People devious crimes are getting worst and worst.. In a theater.? My prayers to the family I'm so sad."

LeBron James: "So u telling me I can't even feel safe at the movies now!!? SMH. My prayers goes out to all the families involved in Aurora, Colorado."

John Stamos: "What devastating news to wake up to. my heart is with everyone involved in the Aurora #theatershooting. what the world needs now is..."

Kristin Cavallari: "Wow..waking up to news about the shooting in Aurora, CO. My heart goes out to all the families. So sad."

"Sons of Anarchy" creator Kurt Sutter: "woke up to the news about shooting. this kinda thing always makes me question my liberal use of violence in storytelling. i'm really sad."

Melissa Gilbert: "Just saw news about shooting in Colo. stunned and saddened. Prayers to all."

Olivia Munn: "My sincerest condolences to the victims and families in Colorado. So sad, so mindless."

Michael Moore: "Too sad at the moment to comment."

Kaley Cuoco: "Colorado omg.. Praying for the families...this is sick."

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