A Hawaii jury convicted Dr. Gerhardt Konig of attempted manslaughter after prosecutors presented evidence he attacked his wife with a rock on a remote Oahu hiking trail, driven by suspicions of infidelity. The verdict came after more than eight hours of deliberation, with jurors citing extreme emotional disturbance as they weighed graphic body camera footage and explosive testimony about the March 2025 incident.

Digital Trail Revealed Planning

Forensic investigators uncovered a disturbing pattern on Konig’s laptop showing Reddit searches about cheating, anger, and divorce in the months before the attack. Authorities testified he purchased voice-activated recording equipment and researched remote hiking locations, including the Pali Puka Trail, with searches containing words like “kill,” “death,” “cliff,” and “fall.” A Dropbox folder labeled “Divorce” added to prosecutors’ argument that the attack was premeditated rather than spontaneous.

Victim’s Account and Witness Testimony

Arielle Konig testified her husband grabbed her and tried forcing her toward a cliff edge during what was supposed to be a birthday trip. She said she threw herself down and clung to vegetation as he attempted to push her over, then saw him holding a syringe before she knocked it away. Moments later, she testified, he picked up a rock and began striking her head repeatedly. Two hikers who heard her screams rushed to help and called authorities. Body camera footage showed Arielle bloodied and disoriented as bystanders worked to keep her conscious.

Son’s Damaging Phone Call

Prosecutors called Gerhardt’s son Emile, who testified his father called him shortly after the attack and admitted trying to kill his wife, blaming her alleged affair. Emile told jurors his father said he would not be returning to Maui and later appeared on FaceTime with blood on his shirt, stating he planned to jump off a cliff before police arrived. The doctor ended the call saying he was leaving before authorities caught him, triggering a manhunt that ended when officers spotted him with apparent blood on his clothing.

Defense Claims Self-Defense

Taking the stand, Konig denied attempting murder and claimed the confrontation spiraled after an argument about his discovery of hidden messages between his wife and another man. He testified his wife shoved him, grabbed him, and struck him with a rock first, and that he hit her only twice in self-defense. He denied trying to push her off a cliff or using any syringe. The defense argued the incident was an unplanned scuffle driven by marital strain, pointing to expert testimony that her injuries were not life-threatening. Sentencing is scheduled for August 13.