Three students have been killed and five injured at Michigan State University. The gunman’s father is describing the shooter's anger as we learn more about what led to yet another mass shooting in America. Plus, how former Vice President Mike Pence plans to push back on a subpoena about the January 6th insurrection even though he wrote about it in detail in his recent book. Also, Bob Costas joins to discuss race and hiring practices in the NFL.

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