GARY M. GAERTNER, Presiding Judge Appellant, Andrew Keeper, Jr., appeals from his jury conviction on February 10, 1989, of possession of a controlled substance under RSMo § 195.020 (1986). Appellant was sentenced as a prior and persistent offender by Judge Robert Dierker on March 17, 1989, to twenty years imprisonment. Appellant's sole point in this appeal is that there is insufficient evidence to convict him of possessing a controlled substance. We will affirm the verdict of the jury if we find that it is supported by substantial evidence. State v. Mischanko, 743 S.W.2d 867, 868 (Mo. App., E.D. 1987). In determining whether substantial evidence exists, we accept as true all evidence and inferences from the evidence which are favorable to the decision, disregarding all evidence and inferences to the contrary. Id. For the following reasons, we find that there was substantial evidence in this case to support the appellant's conviction.