Marly Kinney, 19, disappeared June 24, 2026 while on a rented pontoon boat with a group of friends at Grayson Lake. Investigators say she was last seen around 4 p.m, getting off the pontoon for a bathroom break. The group boarded again to move to another location. After realizing Marly was not on board, they returned.  Authorities were later notified, prompting a large search.

Drones, sonar, boats, helicopters, K-9 teams, and underwater search equipment were used as more than 50 community volunteers searched the shoreline. Five days after she went missing, Marly Kinney's body was recovered from Grayson Lake.  The cause and manner of death are being determined by the state medical examiner.  

Related to the case, boat operator, Cameron Conley, 23 has been arrested on a charge of boating under the influence  after responding officers observed signs of intoxication.  

Joining Nancy Grace:

• Skye Lazaro  -  criminal defense attorney   Law Firm: Ray, Quinney & Nebeker, website: www.rqn.com, Facebook: SkyeBeth, Instagram: SkyeBeth1 
• Dr. Bethany Marshall  - Psychoanalyst,  https://www.drbethanymarshall.com/, Instagram FB & TikTok: drbethanymarshall, Twitter:@DrBethanyLiveAuthor: "Deal Breaker,"    featured in hit show: "Paris in Love" on Peacock and "The Valley, Persian Style" on Bravo.  Host : "On The Couch with Dr. Bethany Marshall" 
• Robin Dreeke   - Behavior Expert & Former FBI Special Agent / Chief of the FBI Counterintelligence Behavioral Analysis Program, Author: "Sizing People Up: A Veteran FBI Agents Manual for Behavior Prediction," "Unbreakable Alliances: A Spy Recruiter's Authoritative Guide to Cultivating Powerful and Lasting Connections, "website: www.Robin.Dreeke.com, Twitter: @rdreeke 
• Ben Dobrin  - Virginia Beach, VA - Emergency Response Diving Instructor, Police Diver,  Emergency Services Diver 
• Dr. Kendall Crowns  - Chief Medical Examiner Tarrant County (Ft Worth), Host:  "Mayhem in the Morgue", Lecturer: Burnett School of Medicine at TCU (Texas Christian University) 
• Susan Hendricks  - Investigative Journalist, Author: “Down the Hill: My Descent into the Double Murder in Delphi", IG @susan_hendricks X @SusanHendicks 
• Sydney Silvagni  -  Investigative Reporter, 'Crime Stories'