There appear to be a few prize 's running amok in Nigeria.
The initial reports from Jos are that Boko are behind this. \
Over a hundred dead.
Boko Haram's strategy seems odd. They actually had a lot of public support in the North East when they first formed up as they were seen as crusaders against corruption. If they had carried on just targeting police, army and government officials they would have gathered more support. Instead, they turned against the unarmed poor to attract more attention, and have now lost any public support they once had.
Which ever way Boko Haram turn now, Nigeria is on the boil and could be tipped into meltdown in the near future. There is a wide-spread feeling of social injustice in the grass-roots of the population and bubbling resentment at the way they are treated every day by the police, army and government officials. Just a small spark could ignite a bonfire - just like the suicide of a market trader in Tunisia set off social change there.
Boko Haram are not the only possible trigger. There is plenty of intertribal tension in some parts of Nigeria which could also spark off a wider conflict - e.g. the Fulanis (nomadic cow-herders who roam all around West Africa) have attacked several villages killing a lot of people, and even recently attacked the heavily armed convoy carrying the governor of Benue state, killing about 30 but not the governor himself. There are also armed militant groups operating in the south in Rivers state and Delta states primarily opposed to the way the oil revenue from the region is misused, though they have other grievances too.