Mustafa Setmarian Nasar has been linked to the March 2004 Madrid train bombings which killed almost 200 people. MADRID, Spain (CNN) -- Spanish officials have downplayed British press reports that a Syrian-born Spaniard -- Mustafa Setmarian Nasar -- who is linked to al Qaeda activities and the Madrid train bombings, was also behind the London bombings last week. "That is not a fact that has been even minimally confirmed," Spain's secretary of state for security, Antonio Camacho, said at a public appearance in the town of El Escorial, near Madrid, on Monday. "The English authorities have not transmitted that to...