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Boston suspect added to terrorist database 18 months before bombing

BOSTON — The surviving suspect in the Boston Marathon bombings told the FBI about the plot before being read his Miranda rights.

Not it is unclear whether his statements would hold up in a criminal trial, and if not, whether prosecutors even need them to win a conviction.

Dzhokhar Tsarnaev, 19, is in the hospital recovering from injuries received during a getaway attempt. 

New details are emerging abut Tamerlan Tsarnaev. The federal government added his name to a terrorist database 18 months before the deadly explosions.

The CIA made the request after the Russian government contacted the agency.

Russian officials were worried he would become a follower of radical Islam.

Tamerlan Tsarnaev was killed in a police shootout Friday.