This map shows Twitter activity in and around the U.S. during the announcement of the grand jury's decision to not indict Darren Wilson for the fatal shooting of Michael Brown.
The most striking increase in tweets mentioning #Ferguson or Ferguson came at around 8:30 p.m. CT when the decision was announced.
There were over 3.5 million tweets about the Ferguson decision Monday night.
Tasneem Nashrulla is a reporter for BuzzFeed News and is based in New York.
Contact Tasneem Nashrulla at firstname.lastname@example.org.
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