“The alleged attacker prioritized creating a comprehensive ‘how-to’ guide for future attackers, including guidance on bolstering opportunities for maximum casualties and optimizing personal defense,” the bulletin says.
The bulletin comes several months after 10 people were killed in what authorities say was a racially motivated attack at the Tops Friendly Market on May 14.
CBS News first reported the bulletin.
The 180-page document, which the bulletin calls a manifesto, includes a breakdown of weapons, ammunitions and gear considered in the planning of the attack and a cost-benefit analysis of using select materials, the bulletin says.
Approximately 100 pages of the document provide recommendations on specific tactics and procedures “intended to maximize casualties,” according to the bulletin.
Given the concern, the bulletin urges state and local authorities and the private sector to “promptly” report suspicious activities, asking them to be on the lookout for things such as increased circulation of the attacker’s guidance materials and unusual purchase of military-style tactical equipment.