In that instant, a bustling Hasidic neighborhood turned into a war zone. In the end, six people, including the assailants and a Jersey City police detective shot nearby, had been killed.

Investigators later determined that the carnage on Tuesday began with the shooting of the detective, Joe Seals, near a cemetery. The attack on the market appeared to be premeditated, the authorities said.

[Read more about the rampage at the market.]

Here’s what we know so far.

Five people, including the assailants, were killed at the market.

As the assailants and the police exchanged gunfire at the JC Kosher Supermarket, officers descended on the van. Officials later said it contained a pipe bomb and a manifesto-style note.

Inside the market, three were slain. They were identified as Mindel Ferencz, 33, who ran the market with her husband; Moshe Deutsch, 24, a rabbinical student; and Miguel Douglas Rodriguez, 49, who worked at the store.