Cristhian Bahena Rivera, a 26-year-old undocumented immigrant from Mexico, admitted in an August 2018 interview with police that he followed Tibbetts while she was out for an evening run, got angry at her and “blacked out,” according to an arrest affidavit and testimony at trial. He said he later came to and realized she was bleeding in his vehicle’s trunk and then buried her in a remote Iowa cornfield, prosecutors said.
Bahena Rivera then led police to the cornfield, where investigators found her body with fatal stab wounds, prosecutors said.
But in testimony Wednesday, Bahena Rivera –…
