(Agence France-Presse) The defense for accused Boston marathon bomber Dzhokhar Tsarnaev say the FBI approached his brother and fellow suspect Tamerlan about becoming an informant on the Chechen and Muslim community.

The United States is to seek a rare federal death penalty for Dzhokhar after three people were killed and about 260 wounded on April 15 last year when two bombs made of explosives-packed pressure cookers went off near the finish line of the Boston marathon.

Dzhokhar, then 19, and his 26-year-old brother Tamerlan were cornered by police after a four-day manhunt. Tamerlan died after an exchange of fire with police and Dzhokhar was wounded.

In court filings Friday, lawyers for Dzhokhar demanded that all information about alleged FBI contacts be made available for the court.

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