Boston bomb suspect wakes up: 'Terrorist' conscious and answering FBI questions in writing as it is revealed he meekly lifted shirt when he climbed from boat to show police he wasn't strapped with explosives

Alleged Boston Marathon bomber, Dzhokhar Tsarnaev, is awake and responding to questions in his hospital bed.
The 19-year-old is responding sporadically in writing to questions from investigators regarding other cell members and other unexploded bombs, law enforcement sources told ABC News.
The news comes as it is revealed Tsarnaev, who is badly wounded in the throat, meekly pulled up his shirt to show officers that he was not wearing a vest strapped with explosives on Friday night as he emerged from the boat he had been cowering in.
'At the end they were just making demands of him: Show your hands, lift your shirt. And eventually that's what he did,' Watertown Police Chief Edward Deveau told ABC News.
'He was very slow and lethargic in every move that he made and they could see that there was no device on his chest. They kept creeping closer to him and then they felt it safe enough to pull him away from the boat.'
Authorities initially said they couldn't question the terror suspect because of his severe throat wound.

Tsarnaev is believed to have shoved his pistol in his own mouth and pulled the trigger in a failed suicide attempt as SWAT officers and federal agents closed in on his backyard hiding place. However, instead of killing him, the bullet simply tore through his neck.
CNN reported earlier today that Tsarnaev was 'intubated and sedated' at a Boston hospital.

The Boston police commissioner said Tsarnaev is in 'critical but stable' condition on Sunday - which appears to be a downgrade from reports earlier this weekend that his condition was only 'serious.'
Boston Mayor Tom Menino had earlier feared that federal agents would never be able to interview Tsarnaev but it seems that investigators may already be making progress.

Police sources told MailOnline that investigators are looking into the possibility that Tsarnaev and his older brother Tamerlan had a suicide pact so that neither of them could be taken alive and put on trial. Authorities believe Dzhokhar likely killed him brother, who was handcuffed, when he ran over him.
A suicide pact could also explain why 19-year-old Dzhokhar ran over his own brother in his stolen Mercedes SUV as he escaped from the scene, the sources added.
Tamerlan was killed early Friday after a running gun battle with police. Doctors say he appeared to have multiple gunshot wounds, blast injuries and major trauma from being hit and dragged by his brother's car.
The new twist in the story of Tsarnaev's dramatic capture comes as the Boston police commissioner warns that he and Tamerlan were plotting more bomb attacks on the city and they were caught just in time. Authorities insisted that the pair were working alone.
Ed Davis said the bombers were flushed out of hiding when the FBI released close-up surveillance video of their faces and asked for the public's help in tracking them down.
'The news conference forced them out of their hideout and they decided to commit further violent acts. But it’s my belief that they were already manufacturing explosive devices. Further violent acts were inevitable,' Davis told The Boston Globe.

New video also revealed the final moments of Dzhokha's standoff with police. The images come from a thermal imaging camera aboard a Massachusetts State Police helicopter that was hovering above the dramatic police standoff.
Tsarnaev, 19, was captured by police on Friday night after the boat's owner found him hiding out when he went to check on his beloved watercraft in that was parked on a trailer at a house in suburban Watertown, Massachusetts.

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