He posed as a buyer for illegal substances, and broke the deal off at the last minute after he had confirmed that there were actually dealers operating through Instagram to complete transactions. His dealer didn’t appreciate Babb walking away from a transaction, and called Fletcher out publicly for walking away from the deal. Contained within that public message was a threat containing a gun emoji and a face with crossed out eyes. In context, and given the nature of the transaction, it’s not hard to see how that would be considered a direct threat even though it wasn’t made with words.