You are incorrect:
18 U.S. Code § 3502.Admissibility in evidence of eye witness testimony
The testimony of a witness that he saw the accused commit or participate in the commission of the crime for which the accused is being tried shall be admissible in evidence in a criminal prosecution in any trial court ordained and established under article III of the Constitution of the United States.
And this particular nurse would be torn to shreds on any witness stand.
We both know that. Stop being pedantic.