Day 7 began with a defense expert and ended with one of the biggest developments of the trial: Gerhardt Konig taking the stand in his own defense. It was a major turning point because for the first time, jurors heard directly from Gerhardt about the marriage, the trip, and the fight on the trail.
The day opened with testimony from Dr. Jonathan Arden, a forensic pathologist called by the defense. Arden told jurors that Arielle’s scalp injury, while very bloody, was limited to soft tissue and was not life-threatening. He also testified that, in his opinion, the injury did not qualify as serious bodily harm. That mattered because the defense was clearly trying to reduce the severity of the injuries and challenge the prosecution’s picture of an especially brutal attempted killing.
Arden also pushed back on the number of alleged blows. He testified that the injuries did not match a claim of ten strikes and instead were more consistent with only two to three impacts. Prosecutors cross-examined him aggressively, pointing out that he was a paid defense expert and pressing him about prior television appearances, including on high-profile media programs. That line of questioning seemed intended to suggest jurors should be cautious about treating him as a neutral expert.
Then Gerhardt took the stand.
Gerhardt testified that Arielle had admitted to an affair and that he had seen communication between her and another man. He told jurors the two went to counseling and decided not to keep discussing the affair after that. According to him, they felt hopeful and committed to making the marriage work. He said he planned the birthday trip for Arielle as part of that effort and insisted he did not plan the trip to kill her.
The defense showed photos of the couple appearing to have a good time on the trip, reinforcing Gerhardt’s claim that things had been going well. He also testified that on the morning of the hike, he told Arielle that his life insurance had gone through, a detail that may become important because the prosecution has suggested financial and planning issues matter in this case.
Gerhardt said that during the hike, an argument became heated and the two separated on the trail. According to his account, they later met up again, Arielle apologized, and it was her idea to take a selfie near the edge of the cliff. He testified that she then tried to push him over the edge, and that everything that happened after that was him defending himself.
He denied ever having syringes. He also testified that after the incident he was in shock and walked away from the scene. Later, he said, he called his son to say goodbye and regretted putting him in that position. According to Gerhardt, that phone call became a turning point and his son stopped him from wanting to end his life.
By the end of the day, the defense had finished its questioning of Gerhardt, setting up cross-examination for the next day. Day 7 was critical because jurors finally got Gerhardt’s full version of what happened, and it directly contradicted Arielle’s testimony in key ways.