http://www.csnbayarea.com/49ers/tomsula-disputes-kaepernick-island-confirms-heated-meeting
Now that may have been between VD n Staley:
http://www.bayareasportsguy.com/source-vernon-davis-and-joe-staley-involved-in-two-locker-room-quarrels/
During the past few weeks, there have been rumblings of a locker room feud at a team meeting. Maiocco referenced it happening four weeks ago. A source told Niners Nation that a player stood up against Colin Kaepernick, and, as a result, another stood up in defense of Kaepernick. Glazer’s report of players being unhappy and unwilling to connect with Kaepernick appear true, but there are others including team captains and veterans standing up for the 49ers quarterback. Needless to say, Kaepernick is not necessarily on an “island by himself,” but I suspect from the vantage point of the players Glazer spoke with, they are unhappy with the performance and what appears to them as Kaepernick’s apathy. We also have sources who stated apologies were exchanged and the team was ready to move on. Well, until the 49ers lost again.