Filicide is the deliberate act of a parent killing their own child. The word filicide derives from the Latin words filius meaning "son" or filia meaning daughter, and the suffix -cide meaning to kill, murder, or cause death. "Filicide" may refer both to the parent who killed his or her child, as well as to the criminal act that the parent committed. Episode In this episode, I share a conversation I had with  Ron Martinelli Ph.D on his radio show A Thread of Evidence. In the conversation, I detail three cases where mothers killed their children and how the investigation was conducted and the truth was revealed. Ron Martinelli, Ph.D., CMI-V, BCFT, CFA America’s Forensic Expert “Dr. Ron Martinelli is a nationally renowned forensic criminologist who is the only police expert in the country who is also a Certified Medical Investigator at the physician’s level. Dr. Martinelli directs the nation’s only multidisciplinary Forensic Death Investigations & Independent Review Team and specializes in forensic investigations including officer-involved and civilian self-defense death cases. Dr. Martinelli is a retired San Jose (CA) Police Department detective with a background in investigations, medicine and applied sciences including forensics, psychology & psychological profiling; physiology and human factors; violent crimes and death scene investigations. He has been referred to in the forensics and legal community as the “expert’s expert.” Dr. Martinelli provides forensic expert services to several State Attorney Generals’ Offices, major metropolitan cities, the USMC Judge Advocate General’s Office and numerous nationally prominent private law firms. He is also a contributing forensic investigations expert for FOX News, CNN, OANN, Discovery, History and Investigations Discovery channels and is a contributing writer to USA TODAY, POLICE Magazine, Law & Order Magazine, The Forensic Examiner, The Law Enforcement Executive Journal, PoliceOne.com and Officer.com.