1112 of title 18, United States Code, with respect to a death involving N-phenyl-N-[1–(2-phenylethyl)–4-piperidinyl] propanamide or an analogue thereof, exchanged for anything of value, a previous conviction for, or a plea of guilty or no contest to, an offense under this section involving N-phenyl-N-[1–(2-phenylethyl)–4-piperidinyl] propanamide, or an analogue thereof, in exchange for anything of value, with respect to which death occurred, may be used as evidence that the defendant had knowledge that the substance provided to the decedent contained N-phenyl-N-[1–(2-phenylethyl)–4-piperidinyl] propanamide or an analogue thereof. (B) Admission of State court acknowledgment Any sworn statement used in State court that is substantially similar to the statement in paragraph (2) shall be admissible in a Federal court. (C) Admission of Federal court acknowledgment Any sworn statement in paragraph (2) may be admissible in a State court. (4) Exception Paragraph (3) shall not apply to the prosecution of an individual who was a minor at the time at which the individual committed the offense. .