Hawaii Doctor’s Son Details Father’s Confession in Wife Attack Case

A Hawaii jury is hearing testimony in the case of Dr. Gerhardt Konig, accused of attacking his wife, Arielle Konig, near the Pali Puka Trail on Oahu in March 2025. A key witness, Emile Konig, the doctor’s son, testified that his father confessed to the attack during a FaceTime call shortly after the alleged incident.

FaceTime Confession: Details of the Call

Emile Konig, who was living with the couple and his younger siblings in Kahului, Maui, recounted the call to the court. He stated his father appeared on FaceTime with blood on his shirt and admitted to attempting to kill Arielle Konig. According to Emile, his father also said he would not be returning to Maui and planned to jump off a cliff.

Father’s Statements Regarding Motive

“He would not be making it back to Maui and to take care of the younger kids and that Ari, my stepmom, had been cheating on him and that he tried to kill her,” Emile testified, as reported by Hawaii News Now and courtroom testimony. During a second FaceTime call approximately an hour later, Konig reportedly reiterated the alleged affair and the attack, while again displaying blood on his shirt.

Suicide Threat and Lack of Self-Defense Claim

Emile testified that his father announced his intention to end his life, stating, “During that call, the next plan that he said was to jump off the cliff.” Emile pleaded with him not to. Prosecutors emphasize that Konig never claimed self-defense during either call, which contradicts the defense’s argument that Arielle was the initial aggressor.

Defense Cross-Examination

During cross-examination by defense attorney Thomas Otake, Emile confirmed seeing blood on his father’s shirt and that Konig identified it as belonging to Arielle, stating it came from her head. He also testified that his father accused Arielle of infidelity for “a couple months.” Otake also questioned Emile about the atmosphere earlier that morning, to which Emile responded, “Yes, everything seemed normal.”

Digital Evidence Reveals Troubling Searches

Honolulu Police Department digital forensics examiner Det. Thomas Iinuma presented evidence of Konig’s online activity in the months leading up to the alleged attack. Investigators discovered a series of late-night Reddit searches and posts on Konig’s laptop, focused on infidelity, betrayal, and divorce.

Searches Related to Infidelity and Suicide

On December 24 and 25, 2024, Konig allegedly browsed threads with titles such as “Lying again,” “It’s over,” and “I did a horrible thing.” He also searched for remote Maui hiking locations, including detailed information about the Pali Puka Trail. Keyword analysis revealed repeated searches for terms like “danger,” “death,” “fall,” “kill,” “die,” “cliff,” and “hike.” A Dropbox folder labeled “Divorce” was also found.

Family Testifies to Growing Tension

Family members testified about increasing tension in the marriage. Arielle’s stepfather, Peter Mast, said the relationship had cooled over the past year, while her mother, Judith Mast, described tension and emotional distance. Despite this, Judith Mast stated the relationship appeared to be improving before the incident.

Prosecutors Highlight Son’s Testimony

Prosecutors argue that Emile Konig’s testimony is crucial evidence, providing insight into the defendant’s mindset immediately after the alleged attack. They believe it links the digital evidence, the alleged motive of infidelity, and the events that unfolded on the cliff. The defense is expected to continue arguing that Arielle initiated the confrontation.