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A Quincy man who federal investigators say obstructed the investigation into last year's Boston Marathon bombings and lied about his relationship with the suspects has been indicted by a federal grand jury, the U.S. attorney announced Friday.Watch the NewsCenter 5 reportTeam 5 Investigates was the first to report that Khairullozhon Matanov, 23, was arrested at his Quincy apartment shortly before 6 a.m. Friday.Exclusive video of arrest Matanov was indicted on 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. He appeared in federal court Friday afternoon, where he was held without bail.Photos: Timeline of Marathon bombing"Nothing he did or said was intended to mislead the FBI. And from what I know now, it didn't," said his attorney Ed Hayden, who said Matanov received political asylum in the U.S. because of the unrest in his native Kyrgyzstan. "He will plead not guilty."On April 15, 2013, Dzhokhar Tsarnaev, 20, and his brother Tamerlan Tsarnaev, 26, allegedly placed two pressure cooker bombs near the Marathon finish line, killing three people and leaving more than 260 injured.Read: Neighbors react to arrestInvestigators said Matanov, a Kyrgyzstan citizen who entered the United States legally in 2010, was friends with Tamerlan Tsarnaev and knew Dzhokhar. He participated in a variety of activities with Tamerlan Tsarnaev, including worship, soccer and hiking a New Hampshire mountain in order to "train like, and praise, the 'mujahideen,'" according to the indictment.Read: Indictment MatanovAfter learning the Tsarnaev brothers were suspects in the bombing, Matanov deliberately misled investigators about his friendship, contact and communication with the pair, and the fact that he shared their "philosophical justification for violence," investigators said.Matanov is also accused of deleting hundreds of files from his computer, including his Internet history. Investigators said the recovered browser history shows that, on April 18 and 19, he visited the FBI and CNN websites where he viewed videos of the suspected bombers, pictures of the suspects and pictures of MIT officer Sean Collier, who was killed as he sat in his cruiser on the night of April 18.Matanov also deleted files that contained violent content or calls to violence, according to the indictment.In the hours and days after the bombings, Matanov repeatedly contacted and attempted to reach Tamerlan and Dzhokhar Tsarnaev by cellphone and saw Tamerlan in person at least twice, including on the night of the bombing, according to the indictment.At approximately 3:31 p.m. -- just 42 minutes after the bombs detonated on Boylston Street -- Matanov called Tamerlan Tsarnaev and invited him to dinner that night. Matanov then drove and treated the brothers to dinner at a restaurant, according to the indictment.Matanov also went to Tamerlan Tsarnaev's home on Wednesday and visited with with Tsarnaev, Tsarnaev's wife, Katherine Russell, and the couple's daughter, according to the indictment.On the morning of April 19, Matanov, a taxi driver, picked up one of his usual clients and, while listening to the news on the radio, mentioned to the client that he may know the suspects that were being sought in the bombings, according to the indictment.At the urging of the client, Matanov spoke to Braintree police, but said he had not seen pictures of the suspects, had not been in recent contact with the Tsarnaevs and did not know if Tamerlan Tsarnaev lived with his wife and daughter, according to the indictment. All of those statements were later determined to be lies, investigators said.Matanov also asked a friend to destroy his cellphones, but that friend refused, according to the indictment.In the days following the bombings, Matanov expressed support for the bombings, although later that week he said that maybe the bombings were wrong, according to the indictment."He expressed sympathy for the victims' families, although he continued to explain away the significance of the victims' deaths on the ground that everyone must eventually die," the indictment said."They are going to have to prove that what he did and what he said materially obstructed the investigation," said Hayden.The indictment does not charge Matanov with participating in the actual marathon bombings or knowing about them ahead of time."He's very frightened. He is intimidated," said Hayden. "He is concerned what prison is going to be like."The maximum sentence for the count of destruction of evidence is 20 years in prison and eight years for each false statement count. All four counts also carry a maximum of three years of supervised release and a fine of $250,000.Three days after the bombing, Tamerlan Tsarnaev was killed in a gun battle with police, the same night Collier was killed.Dzhokhar Tsarnaev has pleaded not guilty to 30 federal charges in connection with the bombing. He is also facing state charges in Collier's death.Federal prosecutors are seeking the death penalty in the trial that is set to begin in November.Three college friends of Dzhokhar Tsarnaev -- Dias Kadyrbayev, Azamat Tazhayakov and Robel Phillipos -- also are facing charges in connection with the bombing.