Souza was the chief official White House photographer for President Obama for eight years. He spoke with Terry Gross about capturing the mood and emotion of everything from the aftermath of the Sandy Hook Elementary school shooting to the national security team watching the Bin Laden raid in the Situation Room. He estimates he took 1.9 million photos. Jazz critic Kevin Whitehead shares a remembrance of composer Muhal Richard Abrams, and ‘Fresh Air’ remembers longtime WHYY engineer Kevin Griffin, who died Saturday.