307, 317-320; People v. Johnson (1980) 26 Cal.3d 557, 578.) “ ‘[I]f the verdict is supported by substantial evidence, we must accord due deference to the trier of fact and not substitute our evaluation of a witness’s credibility for that of the fact finder.’ ” (People v. Ochoa (1993) 6 Cal.4th 1199, 1206.) “The standard of review is the same in cases in which the People rely mainly on circumstantial evidence. (People v. Bean (1988) 46 Cal.3d 919, 932 [251 Cal.Rptr. 461, 760 P.2d 996].) ‘Although it is the duty of the jury to acquit a defendant if it finds that circumstantial evidence is susceptible of two interpretations, one of which suggests guilt and the other innocence [citations], it is the jury, not the appellate court which must be convinced of the defendant’s guilt beyond a reasonable doubt.’ ” (People v. Stanley (1995) 10 Cal.4th 764, 792-793.)
The evidence, though circumstantial, amply supported defendant’s conviction for murder. Koll was killed in a deliberate manner suggesting execution, not a robbery attempt, indicating his assailant had strong preexisting reasons for wanting him dead. Defendant had such a motive, for Koll had been the only person to identify him as a robber of the pharmacy at the preliminary examination. The only other person who the evidence showed had a motive to kill Koll, James Phillips, was at an all-day family funeral on the day of the killing. Defendant had no corroborated alibi for the time of the killing, and there was sufficient time during the noon recess for defendant to have driven from the supermarket parking lot to the pharmacy, shot Koll, and driven to his apartment and back to the supermarket lot. According to prosecution witnesses, defendant appeared unsurprised when told of Koll’s death shortly after it happened and demanded an opportunity to use the washroom before taking a gunshot residue test.
The killer hid his face behind a blue motorcycle helmet with a smoky bubble shield, both items defendant had owned and used in the recent past. While