On the morning of February 24, 2023, Lindsey Clancy called 911 to report that her two young children were not breathing. By the time investigators arrived at the family's California home, both children were dead — and Clancy was standing in the driveway, according to court records. Now, more than three years later, she sits in a California courtroom facing two counts of murder as prosecutors allege she planned and orchestrated the killings while her defense team argues she was experiencing postpartum psychosis and could not form the specific intent required for murder. As jurors prepare to deliberate, they will consider a legal instruction — known as Tuey-Rodriguez — that could determine whether Clancy is convicted.
Background
The Lindsey Clancy case has drawn national attention as prosecutors pursued murder charges against her in connection with the deaths of her two young children. During the trial proceedings, Judge C. John P. Giannoni delivered the Tuey-Rodriguez instruction to guide jurors on how they could evaluate Clancy's potential criminal liability under California law.
The Tuey-Rodriguez instruction traces its origins to a pair of California appellate decisions: People v. Tuey (1928) and People v. Rodriguez (1979). These landmark cases established the framework for determining when an accomplice can be held liable for crimes committed by another person, even if they did not physically carry out the act themselves.
Under California law, the prosecution must prove specific elements beyond a reasonable doubt to establish accomplice liability. The instruction requires jurors to find that the defendant aided or abetted the commission of the crime with knowledge of the unlawful purpose of the actual perpetrator, and that the defendant intended to facilitate or encourage the criminal act.
The Charges
Clancy was charged with two counts of murder following the deaths of her children in February 2023. Prosecutors alleged she planned and orchestrated the killings, while her husband, Patrick Clancy, claimed his wife drowned the children during a psychotic episode. The defense maintained that Lindsey Clancy was experiencing a mental health crisis and lacked the specific intent required for murder.
The Tuey-Rodriguez instruction became central to the case because it allowed prosecutors to argue that even if Clancy did not physically harm her children herself, she could still be convicted of murder as an accomplice if she aided or abetted the crime with full knowledge of what would occur. Defense attorneys argued this interpretation was overly broad and could improperly expand criminal liability.
Legal analysts noted that the instruction's inclusion suggested prosecutors were prepared to argue alternative theories of culpability, potentially making their case easier to prove if direct evidence of Clancy physically carrying out the killings was lacking.
Key Takeaways
- The Tuey-Rodriguez instruction derives from People v. Tuey (1928) and People v. Rodriguez (1979), California appellate decisions establishing accomplice liability standards
- CALCRIM No. 401 requires prosecutors to prove knowledge of the perpetrator's unlawful purpose AND intent to facilitate or encourage the crime
- The instruction allows jurors to convict a defendant as an accomplice even without proof they directly committed the charged act
- Defense attorneys argued the instruction could improperly expand Clancy's criminal liability beyond what evidence supported
What's Next
Jurors will deliberate after receiving final instructions from Judge Giannoni. They must determine whether prosecutors proved their case — including any accomplice liability theories — beyond a reasonable doubt. The Tuey-Rodriguez instruction will be among the guidelines jurors consult as they weigh potential guilt on murder charges.