As a devastated Iowa community mourns Mollie Tibbetts, the beloved college student who vanished on a run more than a month ago only to be found dead on Tuesday, more is being learned about the man accused in her killing. Cristhian Rivera, 24, was charged with first-degree murder in the alleged abduction and death of Tibbetts, according to the Iowa Division of Criminal Investigation. Rivera is reportedly an undocumented immigrant from Mexico who had lived in the area for four to seven years, investigators said.
