Illegal immigrant arrested in murder of Mollie Tibbetts was local farmhand, say police

The man who was  arrested in the murder  of Mollie Tibbetts, the University of Iowa student who disappeared last month, worked less than three miles from where she was staying the night she vanished. Cristhian Rivera, 24, was employed by Yarrabee Farms for the past several years, according to a source with knowledge of...