United States v. Martinez-Mercado
919 F.3d 91
1st Cir.2019Background
- In Sept. 2010 Francisco Martínez-Mercado, an ATF task-force officer and former PRPD officer, was accused of conspiring with PRPD officers and private "thugs" to break into a PlayaMar condominium and steal valuables while using police resources to shield the operation.
- Two PRPD officers (López-Torres and Ramos-Figueroa) cooperated with the government and testified about meetings, phone calls, a marked patrol car used for cover, and payment after the break-in; cellphone call logs and cell-site data corroborated communications and location on the night of the incident.
- The government introduced testimony about two prior, uncompleted schemes involving Martínez-Mercado and other officers under Rule 404(b); the defense objected that this evidence was propensity-based and prejudicial.
- The court excluded proffered testimony from two ATF agents and an FBI 302 report (summarizing an interview with a PRPD investigator) produced the day before trial; defense argued Brady violation and sought a material-witness warrant for the officer who authored the report.
- A jury convicted Martínez-Mercado of conspiracy to deprive a person of civil rights (18 U.S.C. § 241); the district court sentenced him to 87 months. The First Circuit affirmed on appeal.
Issues
| Issue | Plaintiff's Argument (Government) | Defendant's Argument (Martínez‑Mercado) | Held |
|---|---|---|---|
| Sufficiency: acting under color of law for § 241 conviction | Evidence (cooperators' testimony + phone/cell-site data + use of marked patrol car) shows conspiracy that employed official authority to interfere with Fourth Amendment rights | The break-in was a private crime by hired criminals; absence of formal official act or identifiable victim means no color-of-law Fourth Amendment violation | Guilty verdict supported: use of on-duty marked patrol car, officers' role in diverting investigations, and cell records sufficed to show action under color of law and a Fourth Amendment target; evidence sufficient. |
| Admission of prior-bad-acts under Fed. R. Evid. 404(b) | Prior uncompleted schemes show common plan/scheme, intent, or modus operandi (e.g., use of marked patrol car) | The 404(b) evidence showed separate plots and primarily propensity; differences in method make modus operandi showing inadequate; admission was erroneous and prejudicial | Admission was erroneous as to 404(b) relevance (not a sufficiently distinctive modus operandi), but error was harmless given strong corroborating phone and cell-site proof. |
| Exclusion of defense evidence and Brady claim (302 report) | Government: late 302 was not Brady material; proffers of ATF agent testimony were irrelevant or mistimed | Martínez‑Mercado: excluded ATF testimony would explain his communications; late 302 was material/impeaching and court should have compelled testimony or admitted it | District court did not abuse discretion: proffered ATF testimony was chronologically inconsistent and irrelevant; the 302 was marginal or collateral so not Brady material; exclusion and refusal to issue warrant were proper. |
| New-trial motion based on newly discovered inmate reports | Government: inmate reports are vague, not tied to this case, largely impeaching and would not probably produce acquittal | Martínez‑Mercado: inmate 302s and later interview showed cooperators coordinated false testimony to obtain benefits; material and would likely change outcome | Denial affirmed: even assuming materiality, the reports were not sufficiently tied to this trial and would not probably produce an acquittal given cell-site/call corroboration and other proof. |
| Sentencing enhancements (color-of-law and leadership role) | Guidelines enhancements appropriate because offense was under color of law and defendant organized multiple participants | Martínez‑Mercado disputed enhancements | Court correctly applied guidelines: base offense level for residential burglary, +6 for color-of-law/public official, +4 for organizer/leader of ≥5 participants; no abuse of discretion. |
Key Cases Cited
- Price v. United States, 383 U.S. 787 (private persons acting jointly with state officials act under color of law)
- Screws v. United States, 325 U.S. 91 (defendants’ failure to think in constitutional terms does not preclude § 241 liability)
- Katz v. United States, 389 U.S. 347 (reasonable expectation of privacy / Fourth Amendment framework)
- Old Chief v. United States, 519 U.S. 172 (Rule 404 concerns about propensity evidence)
- Kotteakos v. United States, 328 U.S. 750 (harmless-error standard for prejudicial evidence)
- United States v. Cortés‑Cabán, 691 F.3d 1 (First Circuit on elements of § 241 conspiracy and sufficiency using circumstantial evidence)
- United States v. Rodriguez‑Barrios, 573 F.3d 55 (Rule 404(b) "special relevance" two‑part test)
- United States v. Trenkler, 61 F.3d 45 (modus operandi admissibility—high degree of similarity required)
- United States v. Hatch, 434 F.3d 1 (sufficiency review—verdict must be supported by a plausible rendition of the record)
- United States v. Alicea, 205 F.3d 480 (newly discovered evidence must probably result in acquittal to merit new trial)