Doctor on Trial for Allegedly Pushing Wife Off Hawaiian Cliff on Her Birthday
A trip to Oahu for a wife's 36th birthday. A narrow cliffside trail. And two people who were there that day telling completely different stories about what happened on it.
That's the case a Hawaii jury is now deliberating after weeks of testimony in the attempted murder trial of Dr. Gerhardt Konig.
What Prosecutors Say Happened
Arielle Konig says her husband planned to kill her on that trail.
The couple had been dealing with the fallout of an emotional affair she'd had with a coworker, discovered by Gerhardt in December 2024 when he accessed her WhatsApp account. They went to therapy. They were trying to work through it. Then he planned a birthday trip to Oahu and suggested a hike on the Pali Puka trail — a narrow path with steep cliffs on the island.
According to Arielle, not far into the hike she wanted to turn back. As they headed down the trail her husband suddenly tried to shove her off the cliff. When that didn't work he straddled her and produced a syringe, which she says she knocked away. Then he started hitting her in the head with a rock — as many as 10 times.
"I just started screaming because in my mind he's trying to knock me unconscious to be able to drag me over the edge," she testified.
Two hikers on the trail that day heard the screaming and witnessed Gerhardt Konig hitting his wife with a rock. An ICU nurse named Amanda Morris was one of them. She called 911. When paramedics arrived Arielle had large gashes on her head, bruising, a complex scalp laceration, and a fractured thumb. The syringe was never found.
Gerhardt Konig was gone by the time authorities arrived. He was caught after an hours-long manhunt near the Pali Highway.
His Own Son Made Things Worse For Him On The Stand
Emile Konig testified that his father called him twice via FaceTime after the incident, told him he wouldn't be making it back to Maui, and asked him to take care of the younger kids. According to Emile, his father said he had tried to kill Arielle and that she had been cheating on him. He also told his son multiple times he planned to jump off a cliff and didn't want to be found by police.
What Gerhardt Says
He says none of that is what happened.
On the stand in his own defense, Gerhardt Konig described a marriage he believed was a "dream life" on Maui before the affair shattered it. He said the hike turned into an argument about what she had done, and that she shoved him while he was looking out at the view — nearly sending him over the edge himself.
His version is that Arielle hit him with a rock first. He wrestled it away and struck her twice in self-defense. He denied having a syringe. He denied planning to kill her. He denied confessing to his son.
"Gerhardt, did you have a plan to kill your wife on the mountain that day?" his lawyer asked.
"No," he said.
He did acknowledge calling his son in what he described as severe emotional distress after the incident — but said he was calling to say goodbye before killing himself, not to confess to anything.
Jurors saw photos of both of them taken after the incident. Gerhardt had what appeared to be minor injuries on his face. Arielle was bloody and bandaged in a hospital.
What the Jury Has to Decide
Gerhardt Konig pleaded not guilty to second-degree attempted murder. His defense is self-defense. The prosecution's case rests on Arielle's testimony, two eyewitnesses who saw him hitting her with a rock, a trauma surgeon's account of her injuries, and his own son's testimony about what he said on that FaceTime call.
The jury began deliberations April 7. Whatever they decide, the story of this marriage — the affair, the therapy, the birthday hike that ended in blood on a Hawaiian cliffside — is one that's going to be hard to forget.
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