Phoenix city leaders held a press conference Friday afternoon reacting to today's shooting in Connecticut.
Police Chief Daniel Garcia said he has made preparing for a mass shooting a priority for the department, and his heart goes out to the victims.
"This event was beyond tragic. It was really actually evil. It strikes to the core of law enforcement in our communities, it strikes to the core from a family perspective, this is a community's worst nightmare. It's law enforcement's worst nightmare and a firefighter's worst nightmare."
Chief Garcia called on all residents to be alert, and to always watch for warning signs.
Phoenix Mayor Greg Stanton released this statement: "My condolences, thoughts and prayers go out to the victims and their families of the shooting in Connecticut today. We stand as a city with all the survivors and their families."
Statement by Governor Jan Brewer
"Like all Americans, I am horrified, outraged and heartbroken at the news of today's senseless shooting spree at a school in Newtown, Connecticut. More than two-dozen of our fellow Americans were lost - innocent young lives have been cut short.
"As law enforcement works to put together the pieces of this tragedy in the coming days, I ask that all Arizonans join me in praying for Newtown. Pray for the schoolchildren too young and innocent to comprehend such cruelty. Pray for those who were unjustly taken from their loved ones, and for the families shaken by a sense of grief difficult to imagine. Finally, pray that Americans rally together - as we do in trying and tragic times - to cope with this heartbreak.
"Today, Arizona stands with Connecticut. Let us hold the town of Newtown and its residents in our hearts and prayers. In memory of the victims of this tragedy, and in coordination with the President's order, I have asked that flags at all State buildings be lowered until sunset on December 18, 2012. I encourage all Arizonans to participate in this tribute."