Khairullozhon Matanov, Boston bombings: Massachusetts man charged with obstructing probe

(CNN) -- A Massachusetts man was arrested Friday on suspicion of obstructing the investigation of the 2013 Boston Marathon bombings, authorities said.

Khairullozhon Matanov, 23, of Quincy, is charged with "one count of destroying, altering, and falsifying records, documents, and tangible objects in a federal investigation, specifically information on his computer, and three counts of making materially false, fictitious, and fraudulent statements in a federal terrorism investigation," the U.S. attorney's office for Massachusetts said Friday.

An indictment against Matanov was unsealed Friday.

Authorities say brothers Dzhokhar Tsarnaev and Tamerlan Tsarnaev planted bombs at the finish line of the 2013 race. Tamerlan Tsarnaev was killed during a subsequent manhunt that paralyzed Boston. Dzhokhar Tsarnaev has pleaded not guilty to killing four people -- including three killed by the bombings -- and wounding more than 200.

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