Uncle of the two suspects says they 've brought shame on all Dagestan . Chechen rebels started out fighting for independence from North Caucasus in recent years . Conflict has racked the North Caucasus region for almost two decades . The standard of living in the southwestern republic is poor compared with the rest of Russia . Chechens and al Qaeda have seen violent attacks in recent years .
Uncle of the two suspects says they 've brought shame on all Dagestan . Chechen rebels started out fighting for independence from North Caucasus in recent years . Conflict has racked the North Caucasus region for almost two decades . Chechens and al Qaeda have seen violent attacks in recent years .