Crime & Courts

Marengo man charged with sexual assault says he, alleged victim had 'consensual sex'

Fredrick W. Ahlmann II, 44, of Marengo
Fredrick W. Ahlmann II, 44, of Marengo

A Marengo man accused of sexually assaulting a woman while she was asleep told police the alleged victim was awake and coherent when they engaged in what he described as "consensual sex."

Testimony continued Thursday in the trial of Fredrick W. Ahlmann II, who faces a single count of criminal sexual assault. If convicted, Ahlmann could be sentenced to between four and 15 years in prison.

Prosecutors on Thursday played an audio-recorded police interview during which Ahlmann recounted the 2018 party where the assault allegedly occurred. Ahlmann told police he thought the woman might have been under the influence of drugs or alcohol, but claimed she was coherent.

Other witnesses testified that the woman hardly drank that night and was at least one person's designated driver. A toxicology test showed there were no drugs in her system, Marengo Police Detective Andrew Taylor said in court Thursday.

At least one party-goer remembered seeing the alleged victim "passed out" on an air hockey table shortly before police said Ahlmann sexually assaulted her. That same witness, the alleged victim's brother, photographed the moment thinking his sister was "being silly," he said in court Wednesday.

"I thought she was drunk and being silly and passed out there," the man testified.

The alleged assault happened on Feb. 5, 2018, at the Marengo home where the woman lived with her mom and brother, prosecutors said. Ahlmann, 46, had been drinking at the same bar where the alleged victim’s mother was celebrating her birthday, multiple witnesses testified.

Afterward, a group of people returned to the woman’s house for drinks and went to bed, the alleged victim’s brother said in court Wednesday.

Sometime after 2:30 a.m. the alleged victim's memory became "hazy," court records show. Not knowing how she got to her bedroom, the woman said she awoke to Ahlmann sexually assaulting her, according to a civil no-contact petition she filed in 2018.

Ahlmann, however, told investigators the woman was awake and lucid when he helped her off the air hockey table and into her bedroom, according to the recorded interview. Later, when he returned to the woman's room in search of a blanket, the woman made advances toward him, and the pair briefly had what he described as "consensual sex," according to the 2018 police interview.

"It's not like I went in there and raped her or anything," Ahlmann told police in 2018. "She pulled me in and was kissing on me."

Ahlmann acknowledged that the woman might have asked three times who was in the room with her – including once during the alleged assault. He said he thought she was asking whether anyone else other than Ahlmann was in the room.

"I went with it, and then I just didn't feel right," Ahlmann said in the recorded interview. "I said, 'We can't be doing this.'"

Ahlmann told police that he thought of the alleged victim's family as his own and didn't want to complicate their relationship.

The woman's mother testified Wednesday that they only knew Ahlmann from the local bar scene, and she wouldn't consider him a "close friend."

The trial is expected to continue Friday afternoon with testimony from the alleged victim, prosecutors said.

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