Saudi embassy in Washington D.C. issues denial of account of a senior official who talked to MailOnline
A letter to the Department of Homeland Security allegedly named Tsarnaev and three Pakistanis as potential jihadis worthy of U.S. investigation
Red flags from Saudi Arabia to have included Tsarnaev‘s name and information about a planned explosive attack on a major U.S. city
Saudi foreign minister, national security chief both met with Obama in the oval office in early 2013