Mayor Bill de Blasio has announced $27 million in funding to install security cameras at public housing buildings across the city, including the one where two young children were stabbed.

De Blasio met with tenants from the Boulevard Houses where workers are already pre-wiring for 17 new cameras. The plan comes after 6-year-old Prince Joshua Avitto, also known as PJ, was stabbed and his friend 7-year-old Mikayla Capers was wounded in an elevator at the building.

The mayor said that another 48 NYCHA complexes citywide will be getting surveillance cameras installed.

Residents say they have been complaining for years that they wanted the cameras installed. Last year, the city council set aside the money for their installation.

De Blasio blamed bureaucracy and the former administration for the hold up, but acknowledged that his office could have acted more quickly.

Without the cameras in place, police had to rely on a sketch that eventually led to the arrest of Daniel St. Hubert, who police say stabbed the children and possibly two other people, 18-year-old nursing student Tanaya Copeland and a 53-year old man.

The cameras at the Boulevard Houses are expected to be up and running by October. De Blasio says the work will move swiftly at the 48 other NYCHA complexes as well.