The son of the Maui doctor accused of trying to kill his wife near the Pali Lookout last March said his dad admitted to the crime on a FaceTime call on the day of the attempted murder.

In day six of testimonies, Emile Konig testified in the trial against his father Gerhardt Konig. Emile is Gerhardt’s biological son and the stepson of Arielle Konig. Prosecutors said his father FaceTimed him twice on the morning of March 24, 2025, the day Gerhardt is alleged to have tried to murder his wife Arielle.

Gerhardt sat emotionless as his 19 year-old son took the witness stand. Prosecutors asked him when his father called on March 24, 2025, and according to court records, those calls happened at 10:42 a.m. and more than an hour later at 11:46 a.m.

When Emile was asked what his father told him during that first call:

“He would not be making it back to Maui and to take care of the younger kids that he had,” Emile said. “That Ari, my stepmom, had been cheating on him. And that he tried to kill her.”

Emile went on to say that during the second call, his father said he was going to jump off the cliff at the Pali and commit suicide. Gerhardt also asked if Emile had told anybody; his son replied yes, and told him Arielle’s parents and his biological mom.

Emile detailed in court that his father told him he was going to go before the police caught him while ending that second FaceTime with his son, who was on Maui when the calls took place.

‘I TRIED TO KILL HER’: Heartbreak in Hawaii Court as Son Recounts Doctor’s Chilling FaceTime ‘Confession’ and Mother-In-Law Bares the Secrets of a ‘Nuclear’ Marriage

HONOLULU, HI — The “Golden Couple” of Maui was living a high-stakes lie long before they stepped onto the treacherous Pali Puka trail. In a dramatic Tuesday session at the Honolulu Circuit Court, the attempted murder trial of prominent anesthesiologist Dr. Gerhardt Konig took a devastating turn as his own family took the stand to unmask the man behind the surgical mask.

The ‘Death Call’ From the Brush

The courtroom was gripped by a haunting silence as Emile Konig, the doctor’s 19-year-old son, recounted the moment his world shattered. On March 24th of last year—Arielle Konig’s 36th birthday—Emile received a FaceTime call from his father, who was at the time hiding in the dense Oahu brush to evade a massive police manhunt.

According to Emile’s tearful testimony, a disheveled and blood-stained Gerhardt looked into the camera and made a bone-chilling admission:

“I’m not making it back… I tried to kill Arielle.”

Emile testified that he immediately fled to the home of his maternal grandparents, Judith Lynn and David Mast, to report the unthinkable betrayal.

The ‘Nuclear’ Trigger: Counseling and Codes

Taking the stand next was Judith Lynn Mast, Arielle’s mother, who laid bare the toxic rot beneath the surface of the couple’s seemingly perfect life. Mast revealed that the pair had been in intensive marriage counseling after Gerhardt discovered “flirtatious” text messages between Arielle and a male coworker at her high-level nuclear engineering firm.

The defense seized on these messages, claiming they contained a “Nuclear Code”—the term “HALEU” (High-Assay Low-Enriched Uranium)—which they allege was a secret signal used by Arielle to alert her lover when her “angry and upset” husband was nearby.

A Planned Execution or a ‘Snap’?

While the defense argues that Dr. Konig “snapped” under the weight of marital infidelity, the prosecution painted a far more calculated picture. They allege the “birthday hike” was a pre-meditated death trap.

Arielle, who survived the attack despite being struck in the head with a rock at least 10 times, previously testified that her husband’s demeanor changed “robotically” just minutes before he allegedly tried to shove her off a 1,000-foot cliff.

What’s Next?

As the trial of the “Doctor of Death” continues, the jury is left to weigh the word of a respected healer against the harrowing testimony of his own son and mother-in-law. With the “missing syringe” still a point of contention and the “HALEU” lover expected to testify, the case has captivated Hawaii and the nation.

Dr. Gerhardt Konig remains in custody, facing a sentence of life in prison if convicted of second-degree attempted murder.