People sign a banner showing support for the people of Paris during a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
New York Mayor Bill de Blasio attends a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People attend a a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
A banner showing support for the people of Paris is seen during a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
A banner showing support for the people of Paris is seen during a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
A banner showing support for the people of Paris is seen during a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
New York Mayor Bill de Blasio attends a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
A young boy signs a banner showing support for the people of Paris during a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
A woman grieves while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People sign a banner showing support for the people of Paris during a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People sign a banner showing support for the people of Paris during a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)
Paris Attack Vigil In Washington Square Park
People hold signs and flags while attending a vigil held for the victims of the Paris terror attacks in Washington Square Park on November 14, 2015 in New York City. People gathered in cities around the world to show support for Paris following the a coordinated assault that left at least 120 people killed and over 200 injured, 80 of which seriously. (Photo by Andrew Renneisen/Getty Images)