At least three people are dead and 144 wounded, 17 of them critically, after two bombs exploded near the finish line of the Boston Marathon Monday. An eight-year-old boy is among the dead. The blasts took place about a hundred yards apart in the heart of downtown. Most of the 23,000 runners had finished the race when the bombings occurred. But the streets were still packed with runners and spectators cheering them on. No suspects have been arrested or identified, and no one has claimed responsibility for the attack, but police reportedly searched a residence in the city of Revere Monday night. This is Boston Police Commissioner Ed Davis.

Ed Davis: “I’d like to offer my sympathies to the victims and the families of this horrendous event. This cowardly act will not be taken in stride. We will turn every rock over to find the people who are responsible for this. The Boston Police Department is on the scene and has been there since this incident happened. There’s been a horrendous loss of life. At least three people have died in this event.”

National Guard troops have been deployed in Boston, and security is expected to be tight in the city today, with officials searching bags on public transit. Speaking on Monday, President Obama said those responsible for the attacks would be brought to justice.

President Obama: “We still do not know who did this or why. And people shouldn’t jump to conclusions before we have all the facts. But make no mistake: We will get to the bottom of this. And we will find out who did this. We’ll find out why they did this. Any responsible individuals, any responsible groups will feel the full weight of justice.”