Jury begins deliberating in trial of farm worker accused of killing Mollie Tibbetts

The defense for Cristhian Bahena Rivera rested May 26 after he reversed his confession to killing Iowa student Mollie Tibbetts. By Eric Levenson, Madeline Holcombe and Hannah Sarisohn, CNN

(CNN) -- An Iowa jury began deliberating Thursday in the murder trial of a farm worker accused of abducting and fatally stabbing 20-year-old college student Mollie Tibbetts in July 2018.

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 -- speaking through an interpreter -- told a very different story of what happened the night Tibbetts disappeared. He said two masked mystery men kidnapped him, forced him to participate in their plot to kill Tibbetts, threatened his family and told him to remain silent.

In closing arguments, prosecutor Scott Brown dismissed that testimony and said it did not fit with the evidence.

"There weren't two other guys. That's a figment of his imagination," Brown told jurors. "All of the credible evidence in this case points at him."

Defense attorney Chad Frese said the prosecution had no murder weapon, no crime scene, no eyewitnesses, no confession, no motive and no scientific evidence to prove his client's guilt. He said Bahena Rivera's original statements to investigators were made under duress during an 11-hour interrogation.

"We think Cristhian's 'confession,' or statement, was inaccurate or false," Frese said.

The trial comes nearly three years after Tibbetts disappeared after a run in Brooklyn, Iowa, sparking an extensive search that drew national attention.

She had been studying psychology at the University of Iowa and wanted to get a doctorate and write books, her father said. Bahena Rivera, meanwhile, had worked for four years at Yarrabee Farms, a nearby dairy farm.

Her death and Rivera's undocumented status pushed the tragic story into the rancorous partisan political debate around immigration. Former President Donald Trump brought up her story as part of his push to vilify undocumented immigrants as rapists and killers, though the existing evidence shows undocumented status does not correlate with criminality.

Rob Tibbetts, Mollie's father, has repeatedly called on politicians to stop using his daughter's death to make points against immigration, saying she believed these views were "profoundly racist."

Surprise testimony about masked men

The prosecution based its case on three key aspects: surveillance video of Bahena Rivera's vehicle near Tibbetts, his admissions to investigators in August 2018, and her DNA found in his trunk.

"When you put this evidence together, there can be no other conclusion than that the defendant killed Mollie Tibbetts," Poweshiek County Attorney Bart Klaver said at the start of the trial.

After over a month of searching for her, the break in the case came when home surveillance video from the night of July 18, 2018, spotted the silhouette of a woman running -- as well as repeated sightings of a black Chevy Malibu, prosecutors said. An investigator later spotted the vehicle and identified the driver as Bahena Rivera, Klaver said.

After initially denying knowing about Tibbetts, he then admitted he had seen her the night she disappeared, said he found her attractive and said he circled back for a second look, Klaver told the jury. He allegedly admitted he had followed Tibbetts and jogged next to her. She had threatened to call the police, and Rivera admitted he got angry and fought with her, Klaver told the court.

"The next thing he remembers" was that he was driving and realized Tibbetts was in his trunk, Klaver said. Rivera allegedly admitted he took her bloody body out of the trunk, carried her into a field and placed corn stalks over her body, according to Klaver.

He then led investigators to the scene, where her body was found hidden under corn stalks, prosecutors said.

Although Bahena Rivera did not explicitly tell investigators he stabbed Tibbetts, prosecutors said that was the only conclusion.

"He says that he blacked out. He didn't black out. He just didn't tell (an investigator)," Brown said Thursday.

"He's telling the officers, in telling those statements, 'I killed Mollie Tibbetts.' That's what he's saying. That's what the statements all point to," he added.

Bahena Rivera's testimony in his own defense Wednesday sharply contradicted his earlier admissions, though.

He testified he was taking a shower when two unknown, masked men broke into his trailer and demanded his help. One had a knife and the other had a gun, he said.

He testified that they forced themselves into his black Chevy Malibu and told him to drive toward town. That was when he said they came across a young woman he now knows to be Tibbetts.

Bahena Rivera testified that he was told to stop, while the man with the knife exited the car. He said both men then got out of the vehicle and he heard them opening and closing the trunk. When the men left, he said he found Tibbetts' body in the trunk of the car. He said he took her body out of the trunk, placed her in a corn field and covered her body with corn stalks.

Bahena Rivera said he didn't know why the men sought his help. He testified that he falsely confessed to police because he feared the men would harm his daughter and ex-girlfriend and because he thought telling investigators what they wanted to hear would help him.

Correction: An earlier version of this story misstated the details of Bahena Rivera's alleged confession. He did not confess that he killed Tibbetts, but said he had followed Tibbetts on a run, got angry at her and "blacked out" before finding her bleeding in his trunk and then buried her in a remote cornfield, according to an arrest affidavit and testimony at trial.

The-CNN-Wire™ & © 2018 Cable News Network, Inc., a Time Warner Company. All rights reserved.

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