Is there sufficient evidence to convict plaintiff Tom Sitton on either conspiracy or possession with intent to distribute?

Sitton next asserts that the evidence was insufficient to support his conviction on either Count One (conspiracy) or Count Five (possession with intent to distribute). In reviewing the sufficiency of the evidence, we must determine "whether, after viewing the evidence in the light most favorable to the prosecution, any rational trier of fact could have found the essential elements of the crime beyond a reasonable doubt." United States v. Torres-Rodriguez, 930 F.2d 1375, 1382 (9th Cir.1991); Jackson v. Virginia, 443 U.S. 307, 319, 99 S.Ct. 2781, 2789, 61 L.Ed.2d 560 (1979).