One hour after news broke about the school shooting in Florida last week, Twitter accounts suspected of having links to Russia released hundreds of posts taking up the gun control debate.
The accounts addressed the news with the speed of a cable news network. Some adopted the hashtag #guncontrolnow. Others used #gunreformnow and #Parklandshooting. Earlier on Wednesday, before the mass shooting at Marjory Stoneman Douglas High School in Parkland, Fla., many of those accounts had been focused on the investigation by the special counsel Robert S. Mueller III into Russian meddling in the 2016 presidential election.
“This is pretty typical for them, to hop on breaking news like this,” said Jonathon Morgan, chief executive of New Knowledge, a company that tracks online disinformation campaigns. “The bots focus on anything that is divisive for Americans. Almost systematically.”