Is insufficient evidence sufficient to overturn a jury's verdict?

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." (People v. Zamudio (2008) 43 Cal.4th 327, 357.)