This Couple Came To Hike Oahu For Her Birthday. Then He Tried To Kill Her.

A Maui anesthesiologist, accused of trying to kill his wife during a birthday hike on Oahu, is now on trial in Honolulu. Today, the jury heard directly from the woman prosecutors say barely made it out alive. Gerhardt Konig, MD, has pleaded not guilty to second-degree attempted murder in the March 24, 2025, attack on the Pali Puka Trail.

His wife, Arielle Konig, testified Tuesday, exactly one year after the day she says he grabbed her, tried to push her toward a cliff, pulled out a syringe, and then hit her in the head with a rock.

They came to Oahu to help repair a marriage.

The couple came from Maui to Oahu to celebrate Arielle’s birthday. She told jurors she believed the trip could help repair the marriage after a painful stretch that began when her husband found what she described as “flirty” text messages with a colleague in December 2024.

Arielle said they had been doing couples’ and individual therapy, and that she came into the trip feeling hopeful. The couple has two children. Prosecutors also told jurors this was her first trip to Oahu.

Hawaii has a way of becoming the backdrop for things nobody plans for. People come here to celebrate, to reconnect, to start over. Sometimes the problems they carry come with them, and sometimes they end up on a trail that thousands of visitors hike every year.

What happened on the Pali Puka Trail with its 700-foot drop?

The trail runs along a narrow ridge with a 700-foot drop on the windward side, exposed on both sides, and not for anyone uncomfortable with heights. It starts at the Nuuanu Pali Lookout, one of the more visited stops on Oahu. Arielle testified she was uncomfortable posing near the edge and refused to take the photo. That argument, prosecutors say, is what set off the attack.

When she was about 10 feet from the cliff, her husband suddenly grabbed her hard by the upper arms and started forcing her back toward the edge. She told jurors she first thought he might be joking, but quickly realized he was not. She said she dropped to the ground and held onto bushes as the struggle moved to the dirt.

Arielle testified that her husband got on top of her and tried to move her closer to the cliff. She said she saw a syringe in his hand and batted it away, then saw him handling a vial while pinning her down. She told jurors he was swearing at her, saying she was done, and telling her nobody would hear her and nobody was coming to save her.

Arielle said that after a brief lull, he picked up a rock and began hitting her in the face and head. She said he may have struck her as many as 10 times and somehow never lost consciousness.

What hiking witnesses saw and did.

Two nurses hiking nearby, Amanda Morris and Sarah Buchsbaum, heard Arielle screaming and came upon the scene. She screamed that he was trying to kill her. One of the women called 911. The recording played in court: “Someone’s currently being attacked on the top of Pali Puka. There’s a man trying to kill her.”

When they reached her, Gerhardt froze. Arielle crawled away, and those two women got her down the trail. The Nuuanu Pali Lookout, where the trail begins, is an uneventful stop on many Oahu itineraries, with people pulling in and out all day. Most visitors walk to the overlook, take photos of the windward coast, and leave without ever knowing the ridge trail even exists. The Konig couple went further.

The attack happened around 10 a.m. A manhunt lasting more than six hours ended that evening when officers caught Gerhardt near Nuuanu Pali Drive after a foot chase. EMS took Arielle to the hospital in critical condition.

Prosecutors say DNA testing showed all the blood at the scene, including blood on Gerhardt, belonged to Arielle. He has been jailed since. Maui Health suspended his privileges at Maui Memorial Medical Center pending investigation.

Gerhardt’s defense concedes he hit Arielle with the rock but says it was once, after she struck him first, and that there were no syringes. After the attack, he called his teenage son. Prosecutors say he told the boy, “I tried to kill Arielle, but she got away.” The defense says he was calling to say goodbye because he was suicidal.

Arielle showed the jury scarring on her scalp. The defense had her read the birthday card her husband gave her that morning. She read it with her voice wavering. He had called her the heart of the family. The trial continues in Honolulu.

If you’ve been to the Nuuanu Pali Lookout or hiked the ridge, tell us about it in the comments below.

Lead Photo: View from the Nuuanu Pali Lookout on Oahu.