United States v. Cascella, 943 F.3d 1

Between March and May 2017 Cascella sold methamphetamine to undercover Warwick PD detective Mark Perkins on six occasions after being introduced by confidential informant Joe Bennett.
The final transaction (May 4) was a drugs-for-gun exchange arranged with ATF agent Wing Chau; Cascella was arrested immediately after receiving a .380 handgun.
Evidence included video, audio recordings, and a post-arrest confession; Cascella was indicted on nine counts (drug distributions, possession with intent, firearm possession/924(c), and felon-in-possession).
Cascella asserted an entrapment defense, claiming Bennett and Perkins (as government agents) induced him; Bennett invoked the Fifth at trial and the court allowed a blanket privilege.
After conviction, Cascella challenged three trial rulings on appeal: (1) allowing Bennett to refuse to testify; (2) alleged Brady suppression/incomplete production of T-Mobile phone records; and (3) allegedly improper prosecutorial remarks in closing.
The First Circuit affirmed, finding any error in allowing Bennett to invoke the Fifth harmless, no prejudicial Brady violation, and no plain error in closing remarks.

Issue	Plaintiff's Argument	Defendant's Argument	Held
Informant's blanket Fifth invocation	Govt: witness invoked privilege; court permissibly relied on counsel and did not err in sufficiency review because entrapment defense was weak	Cascella: blanket assertion deprived him of calling a key witness who could support entrapment	Harmless error (if error): entrapment defense objectively weak; proffered testimony wouldn't show government overreaching, so no reversal
Brady / phone records production	Govt: produced what it received; no suppression of material exculpatory evidence	Cascella: carrier records later obtained show additional calls between him, Bennett, and Perkins that were withheld/manipulated and could support entrapment or impeachment	No Brady relief: additional records were cumulative or unrelated to overreaching; no reasonable probability of different outcome
Prosecutorial closing statements	Govt: characterization justified by record (evidence shows Cascella was a dealer; comments described behavior in videos/recordings)	Cascella: repeated labels (“drug dealer”), “not his first rodeo,” and comment implying defendant’s silence were prejudicial and improper	No plain error: remarks were supported by the evidence or permissible characterization; contested comment did not improperly comment on defendant’s decision not to testify

United States v. Acevado-Hernández, 898 F.3d 150 (1st Cir. 2018) (upholding blanket privilege where court confirmed witness could not offer relevant non-privileged testimony)
United States v. Santiago, 566 F.3d 65 (1st Cir. 2009) (discussing when witness interrogation can justify sustaining a privilege assertion)
United States v. Vasco, 564 F.3d 12 (1st Cir. 2009) (defines government overreaching required for entrapment)
United States v. Díaz-Maldonado, 727 F.3d 130 (1st Cir. 2013) (burden of production for entrapment defense)
United States v. Gendron, 18 F.3d 955 (1st Cir. 1994) (opportunity alone does not establish entrapment)
Sorrells v. United States, 287 U.S. 435 (U.S. 1932) (foundational entrapment doctrine)
Brady v. Maryland, 373 U.S. 83 (U.S. 1963) (prosecution must disclose exculpatory evidence)
Delaware v. Van Arsdall, 475 U.S. 673 (U.S. 1986) (harmless-error standards in confrontation/impeachment contexts)
United States v. Del-Valle, 566 F.3d 31 (1st Cir. 2009) (Brady prejudice standard)
United States v. Capelton, 350 F.3d 231 (1st Cir. 2003) (calling defendant a "drug dealer" not prejudicial where record supports it)
United States v. Valdivia, 680 F.3d 33 (1st Cir. 2012) (prosecutor may not imply government has corroborating evidence outside the record)
Griffin v. California, 380 U.S. 609 (U.S. 1965) (prosecutor may not comment on defendant's silence)