People v. Mero: A Case Analysis
Statement of the Legal Issue
The primary legal issue in People v. Mero revolves around whether the trial court erred in denying the defendant’s motion to sever charges for two unrelated murders, which were tried together, and whether an improper business relationship between the defendant’s trial counsel and an Assistant District Attorney (ADA) created a conflict of interest that necessitated vacating the conviction.
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Facts
Edward Mero was convicted of two counts of murder in the second degree and two counts of tampering with physical evidence. The first murder involved Mero’s roommate, who was found dead in their shared apartment in 2013 after a suspicious fire. The second murder involved a woman Mero had hired for a date in December 2014, whose body was discovered in a shallow grave in May 2015. Mero was arrested in 2017, and the charges were joined in a single indictment.
Mero moved to sever the charges, arguing that the cases were unrelated, occurred nearly two years apart, and involved different circumstances. The trial court denied the motion, reasoning that the distinct evidence for each murder would allow the jury to consider the proof separately. The jury convicted Mero of both murders and the related tampering charges.
During the trial, a juror was dismissed after being present during a conversation where derogatory comments about Mero were made. Additionally, Mero moved to vacate his convictions, citing an improper business relationship between his trial counsel and the ADA. The trial court found a potential conflict of interest but concluded it did not affect the defense.
Applicable Law
CPL 200.20 (2) (c)
This provision allows for the joinder of offenses based on different criminal transactions that are defined by the same or similar statutory provisions and are thus similar in law.
CPL 200.20 (3)
This provision grants the trial court discretion to sever charges if doing so would be in the interest of justice and for good cause shown. Good cause includes situations where there is substantially more proof on one offense than another, making it likely that the jury would be unable to consider the proof separately for each offense.
Conflict of Interest
A conflict of interest arises when an attorney has divided loyalties that could affect their ability to represent their client effectively. If a potential conflict actually operates on the defense, it may necessitate vacating the conviction.
Court’s Holding
The Court of Appeals affirmed the trial court’s decision, holding that the trial court did not abuse its discretion in denying the motion to sever the charges. The court found that the distinct evidence for each murder allowed the jury to consider the proof separately, and the jury instructions were sufficient to prevent prejudice.

Regarding the conflict of interest, the court concluded that although there was a potential conflict due to the business relationship between Mero’s trial counsel and the ADA, it did not operate on the defense. The court noted that the trial counsel’s advocacy was meaningful and effective, and there was no evidence that the business relationship affected the defense.
Key Terms for Better Understanding
Murder in the second degree: A criminal charge for intentionally causing the death of another person without premeditation.
Tampering with physical evidence: The act of altering, destroying, or concealing physical evidence with the intent to impair its availability in a legal proceeding.
Joinder of offenses: The legal process of combining multiple charges against a defendant into a single trial.
Conflict of interest: A situation where an attorney’s ability to represent their client is compromised by divided loyalties or personal interests.
Severance: The legal process of separating charges or defendants into different trials to prevent prejudice.
CPL 200.20 (2) (c): A provision allowing the joinder of offenses based on different criminal transactions that are similar in law.
CPL 200.20 (3): A provision granting the trial court discretion to sever charges if it is in the interest of justice and for good cause shown.