What is the test for establishing a corpus delicti?

Appellant contends that the prosecutition did not establish a corpus delicti beyond a reasonable doubt. Such is not the law. Only a slight or prima facie showing must be made that the deceased died through criminal means. (People v. Lopez, 254 Cal.App.2d 185, 189, 62 Cal.Rptr. 47.) There was sufficient evidence that the decedent died from consuming methyl alcohol which appellant furnished him knowing that it was poisonous.