Whether Sanchez's conviction was in contravention of historical jurisprudence and the Sixth Amendment when the district court failed to instruct the jury about the mandatory life imprisonment he faced

QUESTION PRESENTED The government convicted Dimarzio Swade Sanchez of aiding and abetting in first degree murder, and he was sentenced to a mandatory life imprisonment. Was Sanchez’s conviction in contravention of historical jurisprudence and the Sixth Amendment, when the district court failed to instruct his jury about the mandatory life imprisonment Mr. Sanchez faced?