The U.S. government has charged Samuel Tunick with allegedly typing in a passcode to wipe his phone before officers could search it. “I hope people understand that the charges against me are meant to intimidate people,” he said.
Just another example of the Trump admin trying to intimidate protestors using whatever the fuck they can to bring up whatever charges they can.
What was the investigation?
That's the fun part... There wasn't one, he just happened to oppose a very unpopular thing happening in his city.