You may have seen the Boston Globe's special section Sunday on the Tsarnaevs, the family of the accused Boston Marathon bombers, Tamerlan and Jahar Tsarnaev.

Three reporters spent five months investigating the family's story in four different countries — Russia, Kyrgyzstan, Canada and the United States.

Two of those reporters speak with WBUR's Sacha Pfeiffer about why they conducted this investigation and what they learned.

Patricia Wen, Boston Globe reporter covering social service, family and health issues

Sally Jacobs, Boston Globe projects reporter

The Boston Globe: The Fall of the House of Tsarnaev