United States v. Musso
914 F.3d 26
1st Cir.2019Background
- Defendant Daniel Musso bought four M67 fragmentation grenades from an FBI undercover agent; the grenades contained their original Composition B explosive charges but had their operable fuzes replaced by visually identical, inoperable fuzes.
- Each grenade could be detonated if a live fuze were reinserted or by other means (commercial/military/improvised detonator or sufficient impact); simply pulling the pin would not have caused detonation as sold.
- Musso was indicted under the National Firearms Act (NFA) for possession/receipt of unregistered "destructive devices" defined in 26 U.S.C. § 5845(f)(1) to include an "explosive ... grenade."
- Musso moved to dismiss, arguing that because the fuzes were inoperable the grenades were not "explosive grenades;" the district court granted the motion.
- The government appealed; the First Circuit reviewed de novo the legal question presented on stipulated facts and reversed, holding the grenades were "explosive grenades" under the NFA and reinstating the counts.
Issues
| Issue | Plaintiff's Argument (Musso) | Defendant's Argument (Government) | Held |
|---|---|---|---|
| Whether grenades with inoperable fuzes are "explosive grenades" under § 5845(f)(1)(B) | An "explosive grenade" must be "in and of itself capable of exploding," so grenades lacking a working fuze are not covered | The statutory text and context treat "explosive grenade" as a category; lack of an operable fuze does not remove a grenade from that category | Held: Grenades with original explosive charges but inoperable fuzes are "explosive grenades" under § 5845(f)(1)(B) |
| Whether replacing fuzes rendered the grenades "redesigned" and thus excluded from the statute (exclusion for devices "redesigned for use as a signaling...or similar device") | Replacement of fuzes transformed the grenades into non-weapons (i.e., redesigned for non-weapon use) | The exclusion applies only to devices redesigned for specific benign purposes; these grenades remain weapons by design | Held: The grenades were still "designed ... for use as a weapon" and not excluded |
| Whether the statute requires a capability/parts test (e.g., working fuze) for an "explosive grenade" | The absence of an internal functioning detonating component means the device is not an "explosive grenade" | The statute contains capability/parts language where Congress intended it; omission in § 5845(f)(1) is deliberate | Held: No separate capability or parts requirement in § 5845(f)(1); absence of working fuze does not exempt device |
| Whether the rule of lenity applies | Ambiguity should be resolved in favor of Musso | Government: statute and context are not grievously ambiguous | Held: No grievous ambiguity after textual and contextual analysis; rule of lenity does not apply |
Key Cases Cited
- United States v. Sheehan, 838 F.3d 109 (2d Cir. 2016) (device containing explosive charge but with inoperable fuze qualifies as an "explosive" device because it remains capable of detonation by other means)
- United States v. Rivera, 415 F.3d 284 (2d Cir. 2005) (weapon rendered inoperable remains "designed" to fire a projectile)
- United States v. Crooker, 608 F.3d 94 (1st Cir. 2010) (Section 5845 provisions can include objective capability tests where Congress provided them)
- United States v. Posnjak, 457 F.2d 1110 (2d Cir. 1972) (Congress intended destructive-device provisions to cover military-type weapons and weapons of war)
- United States v. Beason, 690 F.2d 439 (5th Cir. 1982) (exclusions in § 5845(f) operate as affirmative defenses, not elements)
- United States v. Rushcamp, 526 F.3d 1380 (6th Cir. 2008) (discussed for contrast on applicability of § 5845(f)(2) capability language; not relied on for § 5845(f)(1) construction)