Conviction for conspiracy and obstruction of justice resulting from earnings mismanagement, improper accounting related to the sale and lease back of homes, and the deletion of emails following a grand jury subpoena is affirmed where: 1) the district court's exclusion of certain evidence related to why defendant deleted emails was not in error; 2) the district court did not err is denying defendant's motion for a mistrial on evidentiary and trial conduct grounds; and 3) the district court's method of determining the loss amount from defendant's fraud was correct.