Hopefully this incident is an ugly anomaly, as opposed to the start of something more widespread.
The President has often been just as critical of CNN (and other news outlets) as they have been of him, and his rampant use of “fake news” has been a source of ire in the media at large.
It’s obviously not clear if Brandon Griesemer was actually aiming to follow up on any of the threats that he made against CNN, who had just recently been gotten “recognized” by Donald Trump and his “Fake News Awards.”