HONOLULU — Hawaii Anesthesiologist Who was accused of trying to kill his wife during a scenic cliffside walk with ocean views last year, was found guilty of the lesser charge of attempted manslaughter.
A Honolulu jury returned the verdict against Gerhardt Koenig, 47, on Wednesday after a day of deliberations. He was convicted of attempted manslaughter on the basis of severe mental or emotional disturbance, a charge punishable by up to 20 years in prison. Sentencing is scheduled for August 13.
His lawyer, Thomas Otake, said he planned to appeal. However, Otake said the defense respected the jury’s verdict.
“We are grateful that they did not convict him of attempted murder, which would have resulted in life imprisonment,” Otake said. “We look forward to appealing some of the judge’s rulings throughout the case.”
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Editor’s Note: This story includes discussion of domestic violence. If you or someone you know needs help, please call the National Domestic Violence Hotline: 1-800-799-7233 in the U.S.
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Prosecutors said Koenig, distraught over her affair with a co-worker, planned to kill his wife, Ariel Koenig, during a weekend trip to Honolulu for her birthday in March 2025. They said he tried to push her off a cliff and He stabbed her with an injectionWhen that didn’t work, he hit her with a rock. The attack was stopped by two hikers who heard her screams for help.
The accused testified that his wife was the one who hit him first with a rock, and he hit her on the back in self-defense.
Koenig stood as the jury foreman announced the verdict, then closed his eyes and lowered his face. His parents declined to comment to reporters after that. Ariel Koenig was not in court.
Jury foreman Makalabwa Atkins said deliberations focused on what happened on the road. She said jurors examined the testimony of those who were at the scene to see where there were matches and where there were discrepancies.
“At the end of the day, when it comes down to it, she was hit in the head. A head injury can be serious. This is a very deadly part of the body,” Atkins told reporters after the verdict was read.
She said jurors believed the relationship Ariel Koenig had with a co-worker was enough to cause “emotional distress” and that influenced their verdict.
Under Hawaii law, if jurors believe a defendant committed attempted murder but was under the influence of a severe mental or emotional disturbance at the time, they must reduce the charge to attempted manslaughter if they believe there is a reasonable explanation for that disturbance.
During closing arguments, the doctor’s attorney repeatedly sought to cast doubt on Ariel Koenig’s story.
If Gerhardt Koenig had wanted to kill his wife and had access to a syringe in a remote area, as attorney Thomas Otake suggested to jurors during closing arguments, wouldn’t he have drugged her and then thrown her off a cliff, rather than starting a fight before trying to fill the syringe while struggling with her?
“You’ll use the syringe first,” Otake said. “This doesn’t make sense.”
Trial It started last month, nearly a year after Gerhardt’s Ariel Koenig She went on a hike on the Pali Puka trail in Honolulu that ended in her blood and screaming that he tried to kill her.
Their two young sons stayed home on Maui while the Koenigs were on the trip.
Bali Boca trained him Long closed By the state of Hawaii due to its danger, but social media sites highlighted it. People encroach on state lands to capture its views and take pictures. Ariel Koenig Describe it However, it contains “narrow sections of hills with steep slopes on both sides.”
The trial, with testimony broadcast live by Court TV, aired the couple’s marital problems that preceded the trip, along with their version of what happened on the road.
Gerhard König testified that his wife was having an affair, which he confirmed by unlocking her phone while she was sleeping. The relationship, which Ariel Koenig described as a “passionate affair” involving flirtatious messages with a co-worker, came to light during the trip.
Ariel Koenig testified that her husband grabbed her and moved her toward the edge of the cliff, but she threw herself to the ground in an attempt to hold on. She said he got into it and had a syringe in his hand, but she pushed it away. She said she bit his forearm and squeezed his testicles in an attempt to get him off her.
Her husband denied pushing her to the edge and testified that she hit him in the side of the face with a rock. He added that he wrestled with the rock and hit him twice in self-defense.
Gerhardt König also denied having any syringes on the mountain or trying to stab his wife. His defense lawyer said no syringe was found at the scene because he never had one.
Otake said Gerhardt Koenig was not someone trying to commit murder, but someone who was suffering from infidelity and trying to do his best. Otake quoted a heart-shaped birthday card that Gerhard König wrote to his wife, calling her “the heart of our family” and saying: “The kids and I hit the jackpot with you.”
Gerhardt Koenig testified that as he watched his wife crawl away, he thought his marriage and career were over, and decided to jump to his death. But first he called his adult son from a previous marriage. The son told authorities that his father said he “tried to kill your stepmother” — a confession Gerhardt Koenig denied making.
Koenig testified that he called his son to say goodbye.
Deputy District Attorney Joel Garner said the defendant did not indicate during that call that he hit his wife in self-defense.
Garner said he spent about eight hours hiding on the mountain before deciding to descend, and even then, he tried to flee when confronted by police.
His wife has since filed for divorce.
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Associated Press writer Audrey McAvoy contributed to this report.