DUI: Corpus Delicti

“While evidence of the corpus delicti in a particular case must be established by the best proof attainable, direct evidence is not essential. The corpus delicti may be sufficiently proved by presumptive or circumstantial evidence when that is the best obtainable.” State v. Townsend, 321 S.C. 55, 57 (Ct. App. 1996) (citation omitted)