James Andrew Fairow, Appellant v. the State of Texas, Appellee

Summary

The Court of Criminal Appeals affirmed the trial court's exclusion of a lay witness's opinion on a third person's culpable mental state, holding that Rule 701 does not permit such testimony when the witness lacks personal knowledge of the mental state itself and the opinion is not helpful. The decision rests on the personal‑knowledge and helpfulness requirements of Rule 701 and applies an abuse‑of‑discretion standard of review. Two concurring opinions argued for a bright‑line rule against lay opinions on mental state, but the majority adopted a more flexible approach.