From NPR News in Washington, I'm Windsor Johnston.A shooting spree at a Connecticut elementary school has left an unknown number of people dead.School district officials at Sandy Hook Elementary School say the shooting occurred this morning.Law enforcement officials say the gunman, a 20-year-old man with ties to the school is dead.The Connecticut Governor's top aide Roy Occhiogrosso says he is deeply saddened by today's tragedy.You can imagine the governor is horrified by what's happened. He is meeting with the families right now.His chief concern is to get the families the information they need as quickly as possible. That's why he is not here.Pat Broderick, Chairman of the Emergency Department at Danbury Hospital says they are doing everything they can to assist families and victims.We have many staff members who live in the Sandy Hook area who have been impacted by this.We have set up crisis services that we have mobilized to the Sandy Hook firehouse to be of assistance.The FBI has joined local law enforcement in responding to the deadly school shooting. NPR's Scott Horsley has White House reaction.President Obama was first briefed on the shooting by his Homeland Security Advisor in the Oval Office this morning.White House Spokesman Jay Carney says the President later spoke by telephone with his FBI director and Connecticut Governor Dan Malloy.I can just tell you that as a father, incidents like these weigh heavily on him.And I think everyone who has children and can imagine the enormous suffering that accompanies an event like this.