One tweet that led to an arrest said that Micah Johnson, the man who shot police officers in Dallas last week, was a hero. None of the men have been named, nor have they been charged.

“I know this is a new issue, but I want these people charged with crimes,” said Detroit Police Chief James Craig. “I’ve directed my officers to prepare warrants for these four individuals, and we’ll see which venue is the best to pursue charges,” he said.

The war has begun.