21.   Suspicion also focused on Fernando, who bought a pistol just before the family disappeared.

22.   Suspicion has focused on small stoves and gas cylinders passengers often carry onto trains to heat meals and water for tea or coffee.

23.   Suspicion also focused on Ferdinando, who bought a pistol just before the family disappeared.

24.   Suspicion has focused on activists seeking more democracy or more extremist groups angered by the presence of Western forces in the region.

25.   Suspicion has focused on activists seeking more democracy, or more extremist groups angered by the presence of Western forces in the region.

26.   Still, suspicions have focused on the sect, reinforced by daily revelations of potentially deadly chemicals, weapons parts and military paraphernalia seized in raids on its property.

27.   Suspicion focused on gas cylinders and small stoves passengers often bring aboard to cook meals, despite regulations forbidding it.

28.   Suspicion focused on the gas cylinders and small stoves passengers often bring aboard to cook meals, despite regulations forbidding it.

29.   Suspicion had earlier focused on Afghanistan, home of Saudi multimillionaire Osama bin Laden.

30.   The cause of the crash was unknown, but early suspicions focused on mechanical failure.