The incident occurred after a drunk crowd spilled out of a Toronto Maple Leafs game and many were taking the subway home. TTC cops were trying to make an arrest of one person, and another, a burly fellow who was possibly the son of the person being taken into custody, is shown in another video clearly assaulting one of the transit cops.
Startlingly, the voice of reason in this matter is coming from Ward 21 Councillor Joe Mihevc, who said "videos like that... don't tell us what happened beforehand, who else was around, what the situation was.."
Although there was a crowd at the subway station when the altercation occurred and since this is 2015, there were plenty of people videoing the incident. As more videos of the incident are emerging, it is looking like cops using necessary force to restrain a violent drunk who resisted arrest, rather than 'policed brutality.'
This is the video of the January 29 incident that stirred up the upset - the video was just released yesterday:
But here is another video of the same incident, released almost a month ago, showing the suspect punching and kicking the TTC cop repeatedly (see at about the 1:00 minute mark):