It may have some governance by the collective bargaining agreement as well ... but I'm not familiar enough with that document to know.It'll likely depend on how it's written, but most seem to have clauses that give teams this ability.
Once he's suspended... and that's almost a given since he's had two gun issues in three months, he won't be paid.
Evidently his court hearing has been scheduled for October 18, though I'll bet he tries to get this delayed as long as possible
One thing I seem to recall is that during those negotiations the primary concern of the players was .... wait for it .... money. But the primary concern for the owners was the "integrity of the shield." The owners insisted on rules that safeguarded anyone from "tarnishing the shield" or lowering the good image the league has among people. If the brand looks wholesome, it's a lot easier for politicians to maintain the anti-trust exemption and networks to pay gazillions to air the games. But once the shield starts taking a hit, like it did in the Ray Rice era, the non-fans are a very real threat to destroy the entire league. When politicians waver because of those zealots, things like helmet safety start to threaten the very existence of the sport.
So, while the players were more focused on the short-term of their careers (and understandably so), the owners were concerned with the long-term of their investments (and understandably so). In the end, its probably mostly about money to both sides ... but for us fans, keeping the integrity of the shield paramount is the one thing that ensures we have an NFL to watch for the rest of our lives.
Fins crossed at least.