What is the test for a finding of intent to kill?

Defendant contends the special circumstance is not supported by substantial evidence and thus violates the California and federal constitutional due process guaranties. He agrees, however, with respondent that the general standard of review of this factual question is whether " '... after viewing all the evidence in the light most favorable to the prosecution' any rational trier of fact could have found the elements of the crime beyond a reasonable doubt." (People v. Edwards (1991) 54 Cal.3d 787, 813, 1 Cal.Rptr.2d 696.) Respondent asserts three reasons why the finding of a specific intent to kill is supported.