In order to narrow the class of death penalty-eligible defendants as required by "Furman", the Texas Legislature did not adopt the "aggravating factors" approach outlined by the Model Penal Code. Instead, it chose to modify and severely narrow the legal definition of "capital murder", thus requiring certain objective elements to be present before one could be charged with capital murder and thus eligible for the death penalty. The 1976 law defined capital murder in Texas as involving one of the five situations: