The story had all the ingredients of a summer mystery — a beautiful young coed disappears while jogging in a small town in Iowa. It was national news for weeks before Mollie Tibbetts’ body was found. Now, with the arrest of an undocumented immigrant, it’s a political story.

On this week’s edition of Beat the Press, Emily Rooney was joined by Callie Crossley of WGBH, Adam Reilly of WGBH, former CNN White House correspondent Dan Lothian and Joanna Weiss, editor of Experience Magazine at Northeastern University.