United States v. Manuela Chavez, 12 F.4th 716

Roma III was a south-side Chicago clothing store owned by Manuela Chavez and her aunt Rosalinda Perez; the front sold clothes while kilogram quantities of heroin and cocaine were sold from the back room.
Willie (Willie) Slater, a long-time drug dealer and later cooperating witness, made multiple recorded purchases for the FBI in 2015; an August 28 recording showed Chavez handing Slater a brick‑shaped, taped package from the back room.
Chavez was indicted for conspiracy to distribute and possession with intent to distribute heroin and for distribution, tried, and convicted based principally on Slater’s testimony and the recordings; she was sentenced to 108 months’ imprisonment.
At trial defense argued Slater was unreliable and had incentives to lie; government emphasized Slater’s cooperation, plea agreement incentives to testify truthfully, and the video corroboration.
On appeal Chavez challenged (1) multiple rebuttal remarks by the prosecutor as improper vouching, attacking defense counsel, and inflaming the jury; (2) an implied comment about Chavez’s failure to testify violating the Fifth Amendment; and (3) sentencing reliance on an allegedly unsupported factual finding that Chavez financially benefited from drug sales.

Issue	Chavez's Argument	Government's Argument	Held
Prosecutorial remarks in rebuttal (vouching, impugning defense, inflaming jurors)	Remarks improperly vouched for Slater, maligned defense counsel, and inflamed juror fears; cumulative error requires new trial.	Remarks were grounded in trial evidence, were permissible inferences about credibility or were tactical and minor; district court did not abuse discretion.	No reversible error: most remarks were supported by evidence or permissible inference; district court acted within discretion; no cumulative prejudice.
Implication that Chavez’s silence (didn’t testify) shows guilt (Fifth Amendment)	Prosecutor’s comment indirectly invited jury to use Chavez’s decision not to testify as evidence of knowledge.	The remark prefaced arguments about circumstantial evidence of knowledge and did not intend to or naturally lead jurors to infer guilt from silence.	No plain error: context shows prosecutor argued from evidence, not defendant’s silence.
Sentencing reliance on alleged inaccurate fact (that Chavez subsidized lifestyle via drug sales)	Court relied on fact not in record (financial benefit) and so relied on inaccurate information in sentencing.	The court’s written reasons clarified it relied on lack of economic need (supported by PSR); any oral misstatement was corrected.	No procedural error: written statement of reasons relied on supported finding (no economic need); sentence affirmed.

United States v. Rosario, 5 F.4th 706 (7th Cir. 2021) (standard of review for district court’s denial of new trial)
United States v. Klemis, 859 F.3d 436 (7th Cir. 2017) (plain‑error review for unobjected‑to prosecutorial remarks)
United States v. Wolfe, 701 F.3d 1206 (7th Cir. 2012) (prosecutor may not express personal belief in witness truthfulness; may argue reasonable inferences)
United States v. Briseno, 843 F.3d 264 (7th Cir. 2016) (permitting reference to witness obligations under plea agreement as bearing on credibility)
United States v. Kelerchian, 937 F.3d 895 (7th Cir. 2019) (two‑step analysis for prosecutorial remarks: impropriety and prejudice in context)
United States v. Jackson, 898 F.3d 760 (7th Cir. 2018) (prosecutor may not inflame jury passions)
United States v. Marchan, 935 F.3d 540 (7th Cir. 2019) (cumulative‑error doctrine and test)
United States v. Willis, 523 F.3d 762 (7th Cir. 2008) (Fifth Amendment prohibits using defendant’s failure to testify as substantive evidence)
United States v. Carswell, 996 F.3d 785 (7th Cir. 2021) (indirect comment on silence improper only if intent or natural inference to use silence as evidence)
United States v. Pennington, 908 F.3d 234 (7th Cir. 2018) (defendant has right to sentencing based on accurate information)