Testimonial evidence is evidence provided by people who were in the vicinity of the area where the case was located, and who, under oath, assure that they saw or heard something related to the case.
In the question, we have a typical example of testimonial evidence because a witness is assuring that he saw the defendant in the area that is related to the case, but is not necessarily providing any other type of evidence to support that claim. Whether the testimony is considered truthful or not, or relevant or not, depends on the context of the case, and on the ultimate decision of the jury.
