Background
Randy Grainger appealed convictions including two murders, conspiracy, arson, and a weapons offense, with life-without-parole sentences. He challenged warrants used to obtain cell-site information associated with tower dumps near locations connected to the investigation.
The appeal raised both traditional warrant questions and a potentially broader privacy issue: whether Grainger had a reasonable expectation of privacy in data derived from the tower dumps. The State argued the affidavits established probable cause and that the other evidence of guilt independently made any defect harmless.
The Court’s Holding
The Court of Appeals affirmed. It concluded the warrant materials supplied a sufficient factual basis for the relevant locations rather than offering only bare conclusions. Reviewing courts give appropriate deference to the issuing judge while still requiring particular facts connecting the requested search to the suspected crimes.
For one location, the court determined that any error in admitting cell-site information was harmless beyond a reasonable doubt because competent evidence otherwise established guilt conclusively and the disputed material was cumulative. That resolution allowed the court to decline the novel expectation-of-privacy question. Appellate courts ordinarily avoid deciding a constitutional issue when a narrower ground fully resolves the appeal.
Key Takeaways
- Cell-data warrant affidavits should state concrete facts linking the crime, relevant locations, and the data sought.
- Even a defect involving digital evidence will not require reversal when the evidence is cumulative and guilt is otherwise conclusively shown.
- The court left unresolved whether a person has a reasonable expectation of privacy in tower-dump data.
Why It Matters
South Carolina practitioners should not read the affirmance as broad approval of every tower-dump technique. The most consequential privacy question remains open. Prosecutors should build detailed affidavits and preserve alternative evidentiary paths; defense counsel should develop the factual record needed to litigate standing, scope, and the technological character of the search.
The harmless-error ruling also affects appellate strategy. A digital-search issue may be legally important yet fail to change the judgment if the challenged evidence merely duplicates a strong independent case. Briefing should therefore address both the constitutional merits and the precise role the data played at trial.