Hawaii anesthesiologist Gerhardt Konig has been convicted of second-degree murder after prosecutors said he attempted to kill his wife during a brutal cliffside assault on a remote Oahu hiking trail, fueled by suspicions of an affair. Jurors were shown graphic police body camera video of Arielle Konig bloodied and disoriented, as well as the rock prosecutors say he used to repeatedly strike her head, during testimony about what unfolded on March 24, 2025.
Prosecutors argued the attack sprang from jealousy and betrayal, pointing to what they described as a growing fixation on his wife’s alleged infidelity in the months leading up to the incident. A forensic examiner testified investigators recovered Reddit searches and posts from Konig’s laptop focused on cheating, anger, and divorce, including threads titled “Lying again,” “It’s over,” and “I did a horrible thing.” Authorities said Konig also purchased a voice-activated recorder and researched remote hiking locations, including the Pali Puka Trail, with keyword searches such as “kill,” “death,” “cliff,” and “fall,” along with a Dropbox folder labeled “Divorce.” They argued the digital trail reveals motive and planning.
According to prosecutors, the tension culminated on March 24, 2025, when the couple traveled from Maui to Oahu for what was supposed to be a birthday trip. Arielle Konig testified that the hike turned violent when her husband grabbed her and tried to force her toward the edge of a cliff. She said she threw herself to the ground and clung to vegetation as he tried to push her over, then saw him holding a syringe and telling her to “hold still” before she knocked it away. Moments later, she said, he picked up a rock and began striking her in the head. Two hikers who heard her cries rushed in and called 911. Jurors later saw body camera footage showing Arielle bloodied and disoriented as bystanders helped her.
Prosecutors reinforced that account with testimony from Gerhardt Konig’s son, Emile Konig, who said his father called him shortly after the attack and admitted he had tried to kill his wife, blaming it on her alleged affair. “He would not be making it back to Maui… and that he tried to kill her,” Emile testified. He said his father later appeared on FaceTime with blood on his shirt and told him he planned to jump off a cliff before police arrived.
