Gory body cam footage released of Arielle Konig being helps down the O'ahu's Pali Puka trail after being smashed in the head by a rock.

It's part of the attempted murder trial of Maui anesthesiologist, Dr. Gerhardt Konig. 

Each side is describing O'ahu's Pali Puka trail, but have different stories of what happened there almost exactly a year ago.

Arielle says her husband dragged her toward the cliff’s edge, attempted to inject her with “an unknown substance” using a syringe, and hit her “repeatedly on the head” with a rock. 

Konig claims he was NOT trying to kill his wife, and acted in self-defense after Arielle attacked him when he threatened to expose an alleged affair with a married co-worker.

Jurors hear a witness's 911 call, and watch that body camera footage from a responding officer.  Arielle's brutal injuries visible as blood pours from her head wounds. 

Konig's adult son is expected to testify about a video call his father made after the attack that prosecutors are calling a confession.

Joining Nancy Grace today: 

• Eric Faddis - Partner at Varner Faddis Elite Legal, Former Felony Prosecutor and Current Criminal Defense and Civil Litigation Attorney; Instagram: @e_fad @varnerfaddis; TikTok: @varnerfaddis
• Dr. Bethany Marshall -  Psychoanalyst, Author: "Deal Breaker," and featured in hit show "Paris in Love" on Peacock; Instagram & TikTok: drbethanymarshall, X: @DrBethanyLive
• Dan Murphy - Former NYPD Detective-Sergeant, Co-Host of "Gold Shields" Podcast, and Author: “Workplace Safety: Establishing an Effective Violence Prevention Program”
• Dr. Kendall Crowns -  Chief Medical Examiner Tarrant County (Ft Worth), Host of Podcast "Mayhem in the Morgue," and Lecturer: Burnett School of Medicine at TCU (Texas Christian University)
• Alexis Tereszcuk - Investigative Reporter, 'Crime Stories'