In what circumstances will a defendant be found guilty of the first-degree murder of a man during a robbery?

107 In People v. Sirignano (1974) 42 Cal.App.3d 794, 117 Cal.Rptr. 131, the evidence revealed a plan to rob and to kill. In response to a defense contention that the robbery had terminated before the killing occurred, the court stated as follows: 'The record supports the inference that the defendant and her associates had planned to kill the victim so that he would not be able to testify against them. There was substantial evidence to support the conclusion that the events of the evening formed one 'continuous transaction,' and such a finding clearly results in felony-murder, in the first degree.' (42 Cal.App.3d at p. 802, 117 Cal.Rptr. at p. 136.) That observation is applicable to the evidence of this case.