The context is that he was posting on a news article about a fake police officer with SS tattoos carrying weapons to intimidate BLM protestors in Las Vegas.
https://archive.ph/EDNKt (this cnn article says his reddit username is p-hustle)
I used samac.io to search his deleted comments.
A few more comments:
He was a marine, we all know that they aren’t the sharpest tools in the shed lol.