Investigators are looking to pinpoint what prompted a deadly attack on a Jewish market in Jersey City.
There are fears that it was motivated by anti-Semitism. The gunbattle and standoff at the JC Kosher Supermarket this week left six people dead.
Students at a nearby school that was on lockdown for hours during the assault are returning to class Thursday.
Officials say a man and woman deliberately targeted the store.
A law enforcement official says authorities believe the two dead attackers identified themselves as part of a movement whose members have railed against white people and Jews.
But officials also say much remains unknown about the motive.
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