Boston bomber Dzhokhar Tsarnaev faces the death penalty after a jury unanimously convicted him Wednesday of carrying out the 2013 attack, the worst in the United States since the 9/11 al-Qaida hijackings.

The 12-person jury took a day and a half to find the 21-year-old former student guilty on all 30 counts related to the April 15, 2013 attacks, the murder of a police officer, a carjacking and shootout while on the run.

U.S. jurors began a second day of deliberations in the Boston bombings trial Wednesday after asking questions about the need for a unanimous verdict and the nature of conspiracy.

Three people were killed and 264 others wounded in the twin blasts at the city's marathon in 2013, the worst attack in the United States since the September 11, 2001 attacks on New York, Washington and Pennsylvania.

A father described in excruciating detail Thursday how his little boy was killed, his young daughter lost a leg and his wife was blinded in one eye in the Boston Marathon bombings which ripped his life apart.

Bill Richard spoke carefully and calmly at the trial of one of the brothers blamed for the bloodshed, at times pausing to keep his emotions in check, as he gave devastating testimony about how the April 15, 2013 bombings ruptured his family forever.

A double amputee who survived the Boston Marathon attacks told court Thursday one of the alleged attackers brushed past him and dropped a backpack moments before the first bomb exploded.

Jeffrey Bauman, who lost both legs in the April 15, 2013 attacks while watching his girlfriend run the race, helped the FBI from his hospital bed to help track down one of the suspects.

Gruesome details of injuries sustained by victims of the Boston Marathon bombings were recounted to jurors on Wednesday as lawyers for the Muslim student on trial for the attack admitted he carried out the bloody assault.

Nearly two years after what was the worst attack on U.S. soil since 9/11, Dzhokhar Tsarnaev's trial got under way in a federal court packed with victims, survivors and the media.

A U.S. court Friday denied a request by alleged Boston Marathon bomber Dzhokhar Tsarnaev for his trial to be moved out of the city, just days ahead of opening statements.

A three-judge panel came down in a two-to-one split decision against the move.

Another ferocious winter storm buffeted the U.S. northeast Monday, blanketing Boston in record snowfall, forcing the postponement of a victory parade for Super Bowl winners the New England Patriots and spelling travel misery.

A storm warning was in place for dozens of cities and the National Weather Service reported Boston was hit with record snowfall of 15.9 inches (40 centimeters). That comfortably beat the previous record of 11.1 inches in the city, set in 1974.

Jury selection in the trial of alleged Boston Marathon bomber Dzhokhar Tsarnaev resumed Thursday after a massive snowstorm forced the U.S. federal court to close for two days.

It is the latest setback to the trial's schedule.

A respected American surgeon has died after being critically injured when a man shot him in a hospital in the northeastern city of Boston, the hospital announced Wednesday.

The incident occurred shortly before noon at Brigham and Women's Hospital on Tuesday. The shooter killed himself after the incident.

A doctor was critically injured when a man opened fire Tuesday at a hospital in Boston, police in the U.S. city said, adding the suspected shooter then killed himself.

The incident occurred shortly before noon at Brigham and Women's Hospital, where the situation was now "under control," Boston police chief William Evans said at a press conference.