 It may be evidenced by the affirmative statement or admission of the possessor of it.If he is silent or says he did not have such knowledge, it may be evidenced in other ways," i.e., by circumstantial evidence and the inferences which the trier of fact may draw therefrom.Plaintiff will therefore be entitled to introduce proof of facts alleged in her complaint as circumstantial evidence that defendant Flood possessed the requisite state of mind, and any conflict between such evidence and direct testimony of defendant Flood will be for the trier of fact to resolve.