Jury Consultant Dave Zehner: “You need to look at people’s pre-existing attitudes and experiences and beliefs”

In this Saturday, Sept. 1, 2018, photo, Chicago police Officer Jason Van Dyke listens during a pretrial hearing at the Leighton Criminal Court Building in Chicago. A judge on Thursday, Sept. 6, 2018, refused to jail Van Dyke, who has been charged with murder in the shooting of black teenager Laquan McDonald, for violating his $1.5 million bail by giving news media interviews, instead bumping it up by just $2,000. (John J. Kim/Chicago Tribune via AP, Pool)

Jury Consultant Dave Zehner tells John how much impact demographic has on the verdict of the Jason Van Dyke trial. Listeners ask why John even wants to know.