The verdict comes nearly three years after the body of the 20-year-old woman was found in an Iowa cornfield.
The jury of five women and seven men deliberated about three hours on Thursday and about fours hours on Friday, according to a pool report.
Rivera then led police to the cornfield, where investigators found her body with fatal stab wounds, prosecutors said.
After the verdict, prosecutor Scott Brown said the Tibbetts family was “relieved” and “pleased” with the decision, according to KCCI.
“We just wish them the best moving forward,” he said.
Defense attorney Chad Frese said outside…
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