A motorcade carrying Boston Marathon bombing suspect Dzhokhar Tsarnaev rolls away from federal court in Boston. Pic: AP Photo/Steven Senne Source: AP

Wearing a black sweater and grey pants, the 21-year-old with shaggy hair and beard took his place in the US federal court in Boston without uttering a word.

Seats in the gallery reserved for victims of the April 15, 2013 double bombings and their relatives were packed.

Even before the hearing began, tensions ran high.

Outside the courthouse, a man who lost his right leg in the bombings had a testy exchange with a small group of protesters holding signs supporting Tsarnaev and questioning whether authorities have proof that he is responsible for the bombings.

Marc Fucarile held up his prosthetic leg and moved it back and forth toward the demonstrators, saying: “That’s proof right there.”

One of the demonstrators said to Fucarile: “You should care that they get the right guy.”

Fucarile replied: “Get a life, lady. Go to work.”

Tensions ... Boston Marathon bombing victim Marc Fucarile, right, leaves federal court in Boston, with his wife Jen. Pic: AP Photo/Elise Amendola Source: AP

Three people were killed and more than 260 were injured when two bombs exploded near the finish line of the April 2013 marathon.

Tsarnaev, who has pleaded not guilty to 30 federal charges, faces the possibility of the death penalty if he is convicted.

The attacks were the most serious in the United States since the 9/11 al-Qaeda hijackings killed nearly 3000 people in New York, Washington DC and Pennsylvania.

During the brief court hearing, U.S. District Court George O’Toole Jr. made no rulings, saying he would rule in writing on pending motions, including the defence’s latest push to move the trial out of Boston.

David Bruck, one of Tsarnaev’s lawyers, told the judge that the defence plans to file a motion to delay the trial, which is now scheduled to begin on January 5 with jury selection. Bruck did not say how long of a delay the defence will seek.

The mother-in-law of Ibragim Todashev called out to Tsarnaev in Russian in the courtroom. Elena Teyer said she told him: “We pray for you. Be strong, my son. We know you are innocent.”

Later, in English, she yelled to the law enforcement officers escorting her out of the room: “Stop killing innocent people. Stop killing innocent boys.”

Support ... Protestors Karin Friedemann, left, of Boston and Valerie Vanetta, right, of Philadelphia, hold signs outside federal court in Boston. Pic: AP Photo/Steven Senne Source: AP

Tsarnaev never flinched or acknowledged the shouts.

The courtroom was packed with FBI agents, police who worked on the case and more than a dozen survivors and family members.

At his last court appearance 17 months ago, Tsarnaev still bore signs of the bloody standoff with police that led to his capture and the death of his older brother, Tamerlan.

His left arm was in a cast, his face was swollen and he appeared to have a jaw injury. In court Thursday, he had no visible injuries.

Tsarnaev’s trial is expected to last several months, and seating a jury alone could take several weeks to a month.

Judge O’Toole questioned Tsarnaev about whether he had waived his right to appear at previous hearings.

Tsarnaev answered in a clear voice: “Yes, sir.”

Asked by the judge if he believes his lawyers had acted in his best interests, he said: “Very much.”

Appearance ... A courtroom sketch of Boston Marathon bombing suspect Dzhokhar Tsarnaev sitting in federal court in Boston. Pic: AP Photo/Jane Flavell Collins Source: AP

Earlier this month, Tsarnaev’s lawyers argued anew that “emotionally charged” media coverage and the widespread impact of the attacks have made it impossible for him to get a fair trial in Massachusetts.

O’Toole had rejected Tsarnaev’s first request in September to move the trial, ruling that defence lawyers had failed to show that extensive pre-trial media coverage of the bombings had prejudiced the jury pool to the point that an impartial jury could not be chosen in Boston.

Tsarnaev’s lawyers previously said the trial should be moved to Washington, D.C.

O’Toole also rejected a defence request that prosecutors turn over evidence about his older brother’s possible participation in a 2011 triple killing in suburban Waltham, Massachusetts.

In May 2013, the FBI and Massachusetts State Police were questioning Todashev about that killing when an FBI agent shot and killed the 27-year-old mixed martial arts fighter inside his Orlando, Florida, home.

Officials initially said Todashev had lunged at a state trooper with a knife but later said it was a pole. Todashev’s family has disputed that account.

Prosecutors have said Todashev told authorities Tamerlan Tsarnaev participated in the Waltham triple slaying in which the victims’ bodies were found with their throats slit and their bodies sprinkled with marijuana.

Boston Marathon bombing accused Dzhokhar Tsarnaev, charged with carrying out the April 2013 attack that killed three people and injured more than 260. Pic: AP Photo/Federal Bureau of Investigation Source: AP