Whether the Court's decision in United States v. Burrage created a bright line rule on proof of proximate cause

QUESTION(S) PRESENTED |. WHETHER THIS COURT'S DECISION IN UNITED STATES V. BURRAGE, 571 U.S. _ 204 (2014), CREATED A BRIGHT LINE RULE ESTABLISHING A RIGHT OF THE . DEFENDANT TO PROOF BEYOND A REASONABLE DOUBT THAT THE DACHDENI’S DRATH = WAS THE PROXIMATE CAUSE OF THE CONTROLLED SUBSTANCE, ALONE, DISIRIBUTED BY THE DEFENDANT; THAT IS, PROOF, THAT "BUT. FOR" THE CONIROUED SUBSTANCE THE DECEDENT WOULD NOT HAVE EXPIRED AND/OR NO OTHER FACT, . CIRCUMSTANCE, OR EVENT, OCCURRING NATURALLY OR OTHERWISE CAN BE SAID TO HAVE CONTRIBUTED TO THE DEATH OF THE DECEDENT? _ LISTOF PARTIES _ : . [x] All parties appear in the caption of the case on the cover page. ° { ] All parties do not appear in the caption of the case on the cover page. Alistof — all