We've reported on this sort of thing before. Eastern Orthodox monks sparring with each other. Here are two reports of a clash (one clash, two reports) between Greek and Armenian monks in Jerusalem (first report - second report). Why even mention it?
a) Because people forget that there is disunity both among those who claim to hold to Sola Scriptura and those who claim to deny it;
b) Because the monks, being some of the most zealous members of their religions, are fair representatives, not merely nominal adherents;
c) Because, today, disagreements between Evangelical denominations (even if fierce) are not addressed by violence.