Name any other identifying information for the participating officer and witnesses as well as for suspects being viewed; The circumstances warranting the showup: the suspects' matching descriptions provided by witnesses, possessing of items from the crime scene, exigent circumstances; description of the showup: lighting, positioning of the suspect, distance of suspect from the witness, detention characteristics of the suspects (e.g., wearing handcuffs, in patrol unit); statements made by the witness and others during the showu