Whether the prosecution must prove aiding and abetting or Pinkerton coconspirator liability before a remote seller in a chain of distribution may be subjected to an enhanced penalty for death or serious bodily injury resulting from a third party's subsequent distribution of a controlled substance?

QUESTIONS PRESENTED FOR REVIEW |. Whether the prosecution must prove aiding and abetting or Pinkerton coconspirator liability before a remote seller in a chain of distribution may be subjected to an enhanced penalty for death or serious bodily injury resulting from a third party’s subsequent distribution of a controlled substance? ll. Whether in a prosecution for distribution of a controlled substance resulting in death or serious bodily injury, the government must negate the existence of other potential sources of the substance during the time gap between the distribution of the substance and the victim’s death or serious bodily injury? i