Gerhardt Konig was found guilty of attempted manslaughter by a Honolulu jury in April 2026. The jury did not convict him on the prosecution's second-degree attempted murder charge. Konig, an anesthesiologist who worked on Maui, was accused of attacking his wife during a birthday hike on Oahu in 2025.
His effort to obtain a new trial was rejected in September. The judge reached the decision after jurors were questioned about allegations of outside communication during their deliberations. Konig is now scheduled to be sentenced on January 8, 2027.
The accused, Gerhardt Konig, 47, is an anesthesiologist based in Maui. His wife, Arielle Konig, 37, a nuclear engineer, is the complainant and key witness in the trial. According to her testimony, the incident occurred during a planned birthday outing.
Court proceedings have revealed that the couple had been experiencing marital difficulties prior to the incident, which prosecutors suggest may have contributed to the alleged attack.
Arielle appeared in court on the anniversary of the incident, which also coincides with her birthday.
As reported in the People, She testified that when they reached the Pali lookout, a scenic location about 1,200 feet high, they encountered two individuals who seemed lost, and she wanted to assist them. However, Gerhardt reportedly responded, “It’d be nicer if it’s just us.”
Describing the start of the hike as wooded and rocky, Arielle said she felt uncomfortable. “I was just feeling uneasy, I wasn't enjoying myself,” she told the court.
When she suggested that Gerhardt continue up the trail, he moved ahead briefly before coming back and encouraging her to follow him.
Arielle Konig told the court that her husband attacked her while they were hiking. She alleged that he tried to push her off a cliff, restrained her physically, and attempted to inject her with a syringe.
She further testified that he pulled out a syringe from his bag and tried to stab her with it, though she was able to fight him off before any substance could be injected.
When she resisted, she stated that he struck her multiple times on the head with a rock.
As reported in the New York Post, Konig allegedly sneered that she “was f–king done” and told her to “shut the f–k up,” adding, “no one’s going to hear you out here, no one’s going to save you.”
She reported that she screamed for help, believing her life was in danger. Two nearby hikers reportedly responded to her calls, intervened, and contacted emergency services.
Witnesses who arrived at the scene testified that they saw her injured and distressed, and their intervention is believed to have prevented further harm.
I just started screaming, because in my mind, he's trying to knock me unconscious, to be able to drag me over the edge.Arielle Konig
The incident took place on March 24, 2025, at the Pali Puka Trail near the Nuʻuanu Pali Lookout on the island of Oahu, Hawaii.
Reports indicate that the location is a narrow ridge trail with steep drop-offs, which prosecutors argue increased the lethality of the alleged act.
The trial concluded in April 2026. On April 8, a Honolulu jury found Konig guilty of attempted manslaughter based on extreme mental or emotional disturbance, a lesser offense than the second-degree attempted murder charge he originally faced. The conviction carries a maximum sentence of 20 years in prison.
Medical evaluation following the incident documented multiple scalp lacerations. Such injuries are typically associated with blunt force trauma and can vary in severity depending on the force and frequency of impact.
She was hospitalized with head injuries requiring stitches, and medical documentation presented in court supported claims of repeated blunt force impact.
In clinical settings, repeated head trauma may raise concern for underlying brain injury, including concussion or intracranial bleeding.
The alleged use of a syringe introduces additional medico-legal concerns. Although the substance involved has not been publicly confirmed, non-consensual injection attempts can pose risks such as drug toxicity, infection, and rapid neurological effects depending on the agent used.
Prosecutors have suggested that marital issues may have preceded the incident. The defense has presented a different account, stating that the event was a physical altercation and that the accused acted in self-defense.
Defense attorneys have argued that the injuries were sustained during a mutual struggle and have challenged the intent to kill, which remains central to the attempted murder charge.
Konig testified in his own defense and denied trying to kill his wife. He said Arielle attacked him first with the rock and that he wrestled it away from her before striking her twice in self-defense. He also denied having syringes on the mountain or trying to inject her.
Arielle's testimony differed substantially from Konig's account. She said Konig pushed her toward the cliff, attempted to use a syringe against her and then struck her repeatedly with a rock. The jury ultimately convicted him of attempted manslaughter based on extreme mental or emotional disturbance rather than second-degree attempted murder.
A Honolulu jury found Gerhardt Konig guilty of attempted manslaughter based on extreme mental or emotional disturbance on April 8, 2026, after several hours of deliberation. The verdict was a lesser offense than the second-degree attempted murder charge brought by prosecutors.
His attorney, Thomas Otake, said the defense planned to appeal after the verdict.
Emergency responders transported Arielle Konig to a hospital, where she received treatment for her injuries. Law enforcement authorities initiated an investigation, which led to charges of second-degree attempted murder against Gerhardt Konig.
He was subsequently arrested and charged, with prosecutors emphasizing the severity of the alleged assault and the circumstances under which it occurred.
A Honolulu jury found Gerhardt Konig guilty of attempted manslaughter based on extreme mental or emotional disturbance on April 8, 2026. The conviction was a lesser offense than the second-degree attempted murder charge brought against him. The attempted-manslaughter conviction carries a maximum sentence of 20 years in prison.
On September 18, 2026, Judge Wong denied the request for a new trial, finding no evidence that outside influence affected the jury. ABC News reported that all jurors questioned denied discussing the case or verdict with someone outside the deliberations.
Gerhardt Konig is scheduled to be sentenced on January 8, 2027. The attempted-manslaughter conviction carries a maximum sentence of 20 years in prison. Prosecutors are seeking the maximum sentence, while Konig's attorney has indicated that the defense plans to appeal.
The exact sentence has not yet been determined.
(Rh/SS/MSM)