MS NHLAYISI
I will start by referring back to the evidence that he gave.  He said when they met with this group some of them were wearing these red head bands and arm bands.  Then if he says some of them, it means some were not and in his explanation again he says these two people that he met in the school yard were not dressed formally though he didn't take it further to explain as to how they were dressed.  Therefore it is my submission that seeing two people emerging from where those other people disappeared played a role in him thinking that these were part of the group though they were not wearing the same head bands and arm bands that he described were worn by the other members of the vigilante group, but for the reason that they emerged from that same spot where these others have disappeared, to him he thought these are the people who had run into the school and the fact that at some stage he tried to give a verbal warning to say they should stop and they didn't react to act, played a role to an extent that these are the people we were chasing, he's requesting them to stop and they are not complying for whatever reason,.  he doesn't know, therefore he resorts to firing a shot towards them to make them stop.