Yeah remember when Walt drives up to the garage and has Mike in the trunk. Todd meets him and they roll an acid barrel up to the car, and Todd grabs a few jugs of acid, when Jesse pulls up "He doesnt know Mike was whacked" and Walt tells him Mike got away clean. They dont actually show Mike going into the acid but they show enough to know what happened to him.
ya I remember now. Just watched that episode again during the marathon.
Good ending though