UPDATE: This summary originally had an incorrect name of the authoring justice. It has been corrected.Where a defendant engaged in a robbery with co-defendants and that in a course of the robbery one of the co-defendants sexually assaulted one of the robbery victims, the defendant on trial can be found guilty of that assault under an accountability theory whether or not it was in furtherance of the robbery if the assault is charged separately.The 1st District Appellate Court affirmed the decision of Cook County Circuit …