What is the test for a finding of insufficient evidence in a criminal case?

To assess a claim of insufficient evidence in a criminal case, "we review the whole record to determine whether any rational trier of fact could have found the essential elements of the crime or special circumstances beyond a reasonable doubt. [Citation.] The record must disclose substantial evidence to support the verdict - i.e., evidence that is reasonable, credible, and of solid value - such that a reasonable trier of fact could find the defendant guilty beyond a reasonable doubt. [Citation.] In applying this test, we review the evidence in the light most favorable to the prosecution and presume in support of the judgment the existence of every fact the jury could reasonably have deduced from the evidence. [Citation.] 'Conflicts and even testimony [that] is subject to justifiable suspicion do not justify the reversal of a judgment, for it is the exclusive province of the trial judge or jury to determine the credibility of a witness and the truth or falsity of the facts upon which a determination depends. [Citation.] We resolve neither credibility issues nor evidentiary conflicts; we look for substantial evidence. [Citation.]' [Citation.] A reversal for insufficient evidence 'is unwarranted unless it appears "that upon no hypothesis whatever is there sufficient substantial evidence to support"' the jury's verdict. [Citation.]" (People v. Zamudio (2008) 43 Cal.4th 327, 357.)

Section 12022.7, subdivision (a), provides a three-year sentence enhancement for "[a]ny person who personally inflicts great bodily injury on any person other than an accomplice in the commission of a felony or attempted felony . . . ." A defendant "need not be the sole or definite cause of a specific injury" to support a finding that he or she personally inflicted great bodily injury on a victim. (People v. Modiri (2006) 39 Cal.4th 481, 486.) In cases where more than one person perpetrates an attack, "the evidence is often conflicting or unclear as to which assailant caused particular injuries in whole or part. Thus, . . . those who participate directly and substantially in a group beating should not be immune from a personal-infliction finding for the sole reason that the resulting confusion prevents a showing or determination of this kind." (Id. at pp. 496-497.) In the context of a group beating, a personal-infliction finding can be made "if [the] defendant personally applied force to the victim, and such force was sufficient to produce grievous bodily harm either alone or in concert with others." (Id. at p. 497.) Accordingly, where

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