NYC mayoral candidates face off for final debate ahead of Election Day

Three of New York City's mayoral candidates faced off during the last debate ahead of the election.
Republican candidate Nicole Malliotakis, independent Bo Dietl and Mayor Bill de Blasio, who is also up for re-election, touched on several topics but the main talking point was the terror attack in Tribeca.
Each candidate sent their condolences to the victims and their families and told the audience, "We will not back down."
The candidates also talked about school safety and metal detectors in schools after a deadly stabbing in a Bronx classroom, as well as gentrification.