388 N.E.2d 755 THE STATE OF OHIO, APPELLEE, v. ROBBINS, APPELLANT. No. 78-906Supreme Court of Ohio. Decided May 2, 1979. Criminal law — Aggravated murder — Finding of “prior calculation and design” — Justified, when — Self-defense — Defense established, how. 1. Where evidence adduced at trial reveals the presence of sufficient time and opportunity […]