Marshawn is a bitch letting his cousin get fucked up like that right infront of his face.
Get involved and take a chance of video surfacing and face losing a $30 million dollar contract extension with the NFL, or get involved & make what was already a bad situation, worse.
If F.A.B. knew Marshawn was going to be there, then putting him in a spot like that is fucked up to begin with.
For every action, there is a reaction, & this could have turned out way worse for everyone if Marshawn got involved. Loss of contracts, lawsuits, injuries, jail, etc...