On November 22, 1963, Roberts was in the Dallas motorcade when President John F. Kennedy was assassinated. He was riding in the same car as the Dallas Mayor Earl Cabell, and the mayor's wife. Their car was four cars behind the limousine carrying JFK. The family of Ray Roberts can confirm that the Warren Commission or any other of its investigation personnel never asked Roberts a single question about the shooting. When Mrs. Cabell testified to the Warren Commission, she stated that shortly after the shots ended Roberts first said, "That is a .30-06." (with Roberts meaning the shot(s) he could hear sounded like they were fired from a .30-06 type of rifle) and that Roberts had told her that he had also smelled the distinct odor of gun smoke (as did Mrs. Cabell and several other motorcade participants and witnesses who were all located down at street level, which was up-wind from the Texas School Book Depository, and 61' to 82' below and varying distances away from its sixth floor)