As someone has pointed out, this is a much bigger problem. The police are on a go slow and did nothing - they always seem unprepared even when they have advance notice. GOR hooligans always seem to get away with trouble, KPL also do nothing about this. In well run leagues, even fans know that hooliganism has consequences for the clubs they support (fines, playing in empty stadiums, lost sponsorship Etc) and generally avoid unruly behavior which will hurt their clubs.
To the defenders of GOR, these guys used to assault coaches when they lose. It is not the way to attract the common man to stadiums. While GOR fans have contributed to the vibrancy of the local league any further development hinges on attracting more people to come to see live matches and pay for it. I certainly want to one day take my kids to see a match, but not at the risk of being assaulted. Its no wonder Kenya is the sick man of East Africa in football terms.
Great men are not always wise, neither do the aged understand judgement...