Psychotherapist Katie Ong calls her regular nanny, Samantha Rae Booth, when she is going to be out of town.

For two years, Booth has cared for Ong's 3-year-old without incident. Katie becomes concerned when she can't get Booth on the phone just before 8 p.m., so she calls her dad, David Ong, to go by the house and make sure everything is ok.

David Ong arrives at his daughter's Royal Oak home to check on his granddaughter, but once he arrives, he, too, goes silent. When Katie can't get her father back on the phone, she calls her brother-in-law, Douglas Smith, explains the situation, and asks if he will go to the house and see what is going on.

Smith arrives at the home at 9:25 p.m. The front door is wide open. Smith hears noises coming from the basement and calls out to the nanny.

Booth does not respond, so Smith goes down to the basement and is shocked to find Booth covered in blood in a "manic state" and David Ong lying on the floor with severe head injuries. The 83-year-old grandpa, called "the gentle giant" by his family, did everything he could to protect his granddaughter from a screwdriver attack.

Douglas Smith and his niece are sent to the hospital while first responders try to save David Ong in the basement.  The elder Ong is pronounced dead on the scene in the basement.

Joining Nancy Grace today:

• John Day - Criminal Defense Attorney of John Day Law  
• Dr. Janie Lacy - Licensed Psychotherapist and CEO of Life Counseling Solutions, Author of "How To Heal From A Toxic Relationship: A Guide To Reclaiming Your Mental Health and Happiness," and Host of “The Resilient Professional” Podcast on YouTube; Instagram & Facebook: @JanieLacy 
• Tom Green - Former Chief Deputy Washoe County Sheriff’s Office; Homicide Detective & Cold Case Squad Burglary/Fraud Detective; Private Investigator, Owner: Nevada Investigative Services LLC
• Dr. Thomas Coyne - Chief Medical Examiner, District 2 Medical Examiner's Office, State of Florida; Forensic Pathologist, Toxicologist, Neuropathologist; X: @DrTMCoyne
• Allen Lengel - Editor of the daily publication at Deadline Detroit, Former Washington Post Reporter, 
• Dave Mack - Investigative Reporter, ‘Crime Stories’  

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