Although Tamerlan Tsarnaev was run over by his brother during the early morning shoot-out, it has been reported that he actually died in the hospital. Source: Huffingtonpost
Tamerlan Tsarnaev Injuries: Doctor Says Dead Bombing Suspect Had Wounds 'Head To Toe'
"From head to toe, every region of his body had injuries," he said. "His legs and arms were intact – he wasn't blown into a million pieces" – but he lost a pulse and was in cardiac arrest, meaning his heart and circulation had stopped, so CPR, or cardio-pulmonary resuscitation, was started.
Schoenfeld did not address police's assertion that Tsarnaev was run over by a car driven by his brother as he fled the gunfire.
The doctor said he couldn't discuss specific treatments in the case except to say what is usually done in such circumstances, including putting a needle in the chest to relieve pressure that can damage blood vessels, and cutting open the chest and using rib-spreaders to let doctors drain blood in the sac around the heart that can put pressure on the heart and keep it from beating.
"Once you've done all of those things ... if they don't respond there's really nothing you can do. You've exhausted the playbook," he said.
After 15 minutes of unsuccessful treatment, doctors pronounced him dead.
"We did everything we could" to try to save his life, Schoenfeld said.