(CNN) A preliminary report from the autopsy on Mollie Tibbetts' body determined that her death was a "homicide resulting from multiple sharp force injuries," the Iowa State Medical Examiner said. Tibbetts, a 20-year-old student at the University of Iowa, went missing after an evening jog on July 18, sparking an extensive month-long search in the region. A body that officials believed to be hers was found on Tuesday in a rural area, hidden under corn stalks, and the autopsy confirmed her identity. In an arrest affidavit, Rivera said he remembered getting mad at her; what happened afterward was "blocked" from his memory. When he came to, he realized he had put a bleeding Tibbetts in his trunk, and then he carried her into a cornfield and left her there, the affidavit states.

Source: CNN August 23, 2018 19:57 UTC