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Tsarnaev Defense Introduces Adolescent Brain Argument05:37

This article is more than 5 years old.

In federal court, Dzhokhar Tsarnaev's defense team delivered the "adolescent brain" argument.

A child psychology brain imaging expert took the stand to explain the dramatic changes that happen in teenage brains — but prosecutors were also able to score some points through cross-examination.


Jack Lepiarz, WBUR reporter. He tweets @Lepiarz.


WBUR: Former Brother-In-Law Testifies From Kazakhstan In Tsarnaev Trial

  • "A former brother-in-law of Boston Marathon bomber Dzhokhar Tsarnaev testified Wednesday from Kazakhstan about the role of a conservative Muslim convert who steered Tsarnaev’s older brother toward a stricter version of Islam."

This segment aired on May 6, 2015.

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