(Reuters) - Prosecutors charged Dzhokhar Tsarnaev for the Boston Marathon bombings in an impromptu hearing on Monday in his hospital room, accusing him of crimes that could carry the death penalty if he is convicted.
Video taken by security cameras showed the 19-year-old ethnic Chechen placing a backpack near the finish line of the race one week ago, the criminal complaint said, alleging he acted in concert with his older brother, who was killed during a shootout with police early Friday.
Dzhokhar Tsarnaev was captured later that day after a massive manhunt and taken to the hospital with gunshot wounds.
The criminal complaint did not mention a motive for the bombings, leaving that as one of the mysteries of the investigation.But a sworn FBI statement in support of the criminal complaint did reveal new details, such as the recollection of a man whose car was allegedly hijacked by the brothers while they tried to escape on Thursday night.
"Did you hear about the Boston explosion?" one of the brothers is said to have told the carjack victim. "I did that."
The brothers carried two backpacks containing pressure cooker bombs that ripped through the crowd near the finish line of the world renowned race, killing three people and wounding more than 200, the complaint said.
Ten people lost limbs from the bombs packed with nails and ball bearings. By Monday, Boston-area hospitals were still treating at least 48 people, with at least two listed in critical condition.
The 10-page complaint in the Boston case drew from investigators' review of a mass of video and still images captured by security cameras, the media and the public at the race before and after the bombing.
Thirty seconds before the first explosion, Dzhokhar Tsarnaev started fidgeting with his cellphone, the complaint said. After the blast, virtually everyone around him turned to look in that direction "in apparent bewilderment and alarm," while Dzhokhar Tsarnaev appeared calm, the complaint said.
He then left his backpack on the ground and walked away, the complaint said. About 10 seconds later the second explosion ripped through the crowd.
The charges were issued shortly before the city paused at 2:50 p.m. (1850 GMT) to mark the moment a week ago when the bombs exploded. A funeral was held for Krystle Campbell, a 29-year-old restaurant manager who was killed in the bombings, and a memorial service was planned for another victim, Chinese graduate student Lingzi Lu, 23.
An 8-year-old boy, Martin Richard, was also killed.
Dzhokhar Tsarnaev was wounded during at least one of two gun battles with police on Friday, suffering gunshot wounds to his head, neck, legs and hand, the complaint said.
He was mostly unable to speak due to a throat wound, managing to say "no" once in response to a question, according to a court transcript posted on the New York Times website. Mostly, he nodded in response to questions.
Magistrate Judge Marianne Bowler found he was lucid and aware of the nature of the proceedings, the transcript said.
His capture capped a tense 26 hours after the FBI released the first pictures of the two bombing suspects, still unidentified, on Thursday.
Five hours after their faces were pictured on TV screens and websites around the world, the brothers shot and killed a university policeman, carjacked a Mercedes and sought to evade police by hurling more bombs at them during a shootout on the streets of a Boston suburb, police said.
Older brother Tamerlan Tsarnaev, 26, was shot during a close-range exchange of gunfire with police and run over by his younger brother during his escape, police said. Dzhokhar Tsarnaev later abandoned the car and fled on foot, evading police for nearly 20 more hours until he was found hiding and bleeding in a boat.
Those extraordinary days captivated the United States and reminded people of the September 11, 2001, attacks.
Mr Tsarnaev is facing federal charges, including using a weapon of mass destruction and malicious destruction of property resulting in death. Massachusetts has no death penalty, but because Mr Tsarnaev is being prosecuted under the federal legal system, he could still face execution.
Impromptu: spontaneous, unplanned(espontáneo
Hearing: preliminary inquiry vista, audiencia
Be convicted: found guilty(declarado culpable
Place : to put or set in a particular or appropriate place colocar
Backpack: a rucksack or knapsack mochila
Complaint: A formal charge, made under oath, of the commission of a crime querella, demanda
Shootout: a gunfight tiroteo
Manhunt: an organized search, usually by police, for a wanted man or fugitive búsqueda, persecución
Hijack: to seize, divert, or appropriate (a vehicle or the goods it carries) while in transit secuestro
Carjack: to attack (a driver in a car) in order to rob the driver or to steal the car for another crime robo de un automóvil con violencia
Rip through: to move violently or precipitously; rush headlong desplazarse de forma impetuosa
Ball bearings: cojinete de bolas
Fidget with sth : to make restless or uneasy movements moverse nerviosamente, no estar quieto
Hold (a funeral): to cause to take place celebrar, llevar a cabo
Memorial service: acto funerario , ceremonia conmemorativa
Seek-Sought : try procurar, intentar
Hurl: to throw or propel with great force arrojar, tirar
Close-range (close proximity to target) de cerca
exchange of gunfire : intercambio de disparos
Run over: knock down with a moving vehicle atropellar
Flee- fled: run away huir