Documents detail Boston bombing suspect Dzhokhar Tsarnaev's injuries

By Ed Payne, CNN

updated 4:07 AM EDT, Tue August 20, 2013

The backlash over Rolling Stone's cover photo of Boston Marathon bombing suspect Dzhokhar Tsarnaev led to the release of new photos by Sgt. Sean Murphy on Thursday, July 18, of his capture. The images show Tsarnaev as he emerges from the boat where he hid, his face smeared with blood and multiple snipers' lasers fixed on him. View more photos from the aftermath of the Boston bombing.

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The arrest of Dzhokhar Tsarnaev

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STORY HIGHLIGHTS

• Tsarnaev had multiple gunshot wounds, court documents say
• One wound started inside his mouth and exited his face
• Tsarnaev was read his Miranda rights on April 22
• He faces 30 federal charges tied to the April 15 bombing

(CNN) -- Boston marathon bombing suspect Dzhokhar Tsarnaev suffered multiple and severe gunshot injuries before his capture in April, newly released court documents show.

The most serious of the injuries was a gunshot wound that appeared to enter through the left inside of his mouth and exit through the lower left side of his face, said Stephen Ray Odom, a trauma surgeon who treated Tsarnaev at Beth Israel Deaconess Medical Center.

"This was a high-powered injury that has resulted in skull-base fracture, with injuries to the middle ear, the skull base, ... his ... vertebrae ... as well as injury to the pharynx, (and) the mouth." Odom said in testimony given April 22, three days after Tsarnaev was arrested following the bombing.

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His testimony, unsealed Monday, does not say whether the 20-year-old college student inflicted the wound on himself or suffered it during his showdown with police April 19.

Authorities cornered him in a boat in the backyard of Watertown, Massachusetts, home after an intense manhunt.

Miranda rights in hospital

Another document unsealed Monday said a special team of federal agents were able to speak with the seriously wounded Tsarnaev for about two days without any Miranda warnings being given, under a "public safety exception." The document shows he was read his Miranda rights in the hospital on April 22.

Tsarnaev is charged with killing four people -- three spectators who died in the April 15 bombings and a Massachusetts Institute of Technology police officer ambushed in his cruiser a few days later.

At least 264 people were wounded in the double bombings, which took place near the marathon finish line.

He is awaiting trial, after having pleaded not guilty to 30 federal charges. If convicted, he could receive up to life in prison or the death penalty.

His older brother, Tamerlan, is also accused of the attacks. He was killed when Tsarnaev ran over him as police were trying to handcuff him, authorities said.

CNN learned in the weeks following the bombing that Tsarnaev admitted to the acts, and said he and his brother acted alone. Sources say he has since stopped talking with the government.