Nuclear engineer and anesthesiologist Dr. Gerhardt Konig were hiking Oahu's "Pali Puka" trail to celebrate her 36th birthday when they allegedly attempted to kill her on a weekend trip. The incident occurred after a difficult period in their relationship following an "emotional affair" with a coworker. Arielle testified that her husband shoved her towards the cliff, tried to inject her with a syringe, and then hit her head repeatedly with a rock. She survived the attack by fighting back and screaming until two fellow hikers intervened. Prosecutors allege that Gerhardt confessed to his 19-year-old son in a FaceTime conversation and hid from police for hours before he was apprehended. The trial has featured evidence of a divorce and child custody battle, leading to a deeper examination of how the high-achieving couple came to sit across from each other in court.