What is the test for determining whether a person is guilty of a crime?

People primarily rely on circumstantial evidence. Although a jury, or in this case the juvenile court, must acquit if it finds the evidence susceptible of a reasonable interpretation favoring innocence, it is the jury, not the reviewing court, that weighs the evidence, resolves conflicting inferences, and determines whether the People have met the burden of establishing guilt beyond a reasonable doubt. If the trier of fact's findings are reasonably justified under the circumstances, the opinion of the reviewing court that the circumstances may also be reconciled with a contrary finding does not warrant reversal of the judgment. (People v. Casares (2016) 62 Cal.4th 808, 823-824.)