President Barack Obama dedicated his weekly address to remembering the tragedy of the shooting in Aurora, Colo., at a midnight showing of the new Batman movie, "The Dark Knight Rises."

"While we will never know fully what causes someone to take the life of another, we do know what makes that life worth living," Obama said. See our video above for the president's full remarks.  

Presidential candidate Mitt Romney also issued a statement in response to the incident. According to the Huffington Post, Romney called for citizens to focus on loving each other and those affected by what he called "a few moments of evil." 

You can watch the video of Romney's remarks here.