The court instructs the jury that the intentional assumption of a false name immediately after the commission of a crime is not sufficient evidence in itself to establish [defendant’s] guilt, but is a fact that, if proved, you may consider in the light of all other evidence in the case. In determining guilt or innocence, whether or not evidence of assuming a false name shows a consciousness of guilt and the significance to be attached to any such evidence are matters exclusively within the province of the jury. In considering any evidence of assuming a false name, you should consider the motive which prompted it.