An assailant involved in a prolonged firefight in Jersey City, New Jersey, that left six people dead, including one police officer, had published anti-Semitic and anti-police posts online and investigators believe the attack was motivated by those sentiments, a law enforcement official familiar with the case said Wednesday.
Investigators also found a manifesto-style note inside the assailants’ van, the law enforcement official and another official familiar with the case said.
The document, which was described as brief and “rambling,” suggested no clear motive for the shooting. Investigators also found a live pipe bomb inside the vehicle, the law enforcement official said.