For security reasons, only about 30 people — mainly priests, canons and church employees — will be admitted inside the cathedral. Aupetit will be wearing a construction worker's helmet in addition to his mitre.
Security was extra-high in Paris as authorities braced for resurgent yellow vest anger, and Paris police said some 70 people were detained by mid-morning. Multiple protest events are being held around Paris and other cities Saturday for the 23rd weekend of the yellow vest movement.
The unidentified 37-year-old man had pulled up in a minivan outside the landmark cathedral on Fifth Avenue in Manhattan, walked around the area, then returned to his vehicle at 7:55 p.m. and retrieved the gasoline and lighter fluid, said NYPD's John Miller.
Notre-dame De Paris has been witness to several important religious and ceremonial events. For instance, in 1431, Henry VI of England was made king of France here. In 1804, Napoleon Bonaparte was crowned emperor at the cathedral. In 1909, Joan of Arc, was beatified here by Pope Pius X.