In South Carolina there are no overarching criminal statutes of limitations, and few statutes of limitations for individual offenses (statutes like S.C. Code Ann. § 34-11-60, regarding bad/fraudulent checks, may be a rare exception). For most crimes, offenders may be prosecuted no matter how much time has lapsed since the incident.
Source: Alan L. Adlestein, Conflict of the Criminal Statute of Limitations with Lesser Offenses at Trial, 37 Wm. & Mary L. Rev. 199 (1995), http://scholarship.law.wm.edu/wmlr/vol37/iss1/10; S.C. Code Ann. § 34-11-60.