What is the test for an appeal court to uphold an emotionally first degree murder conviction?

"'To determine the sufficiency of the evidence to support a conviction, an appellate court reviews the entire record in the light most favorable to the prosecution to determine whether it contains evidence that is reasonable, credible, and of solid value, from which a rational trier of fact could find the defendant guilty beyond a reasonable doubt.'" (People v. Tafoya (2007) 42 Cal.4th 147, 170.) "'[G]enerally first degree murder convictions are affirmed when (1) there is evidence of planning, motive, and a method of killing that tends to establish a preconceived design; (2) extremely strong evidence of planning; or (3) evidence of motive in conjunction with either planning or a method of killing that indicates a preconceived design to kill.' [Citation.] These factors are not the exclusive means, however, to establish premeditation and deliberation . . . ." (Id. at p. 172.) "Thus, while premeditation and deliberation must result from '"careful thought and weighing of considerations"' [citation], we continue to apply the principle that '[t]he process of premeditation and deliberation does not require any extended period of time. "The true test is not the duration of time as much as it is the extent of the reflection. Thoughts may follow each other with great rapidity and cold, calculated judgment may be arrived at quickly . . . ."'" (People v. Bolin (1998) 18 Cal.4th 297, 332.)

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