Mr. Griffin. Did you question Officer W. H. Denham?
Captain Lawrence. No.
Mr. Griffin. Or Officer W. E. Barnett?
Captain Lawrence. No.
Mr. Griffin. Officer J. M. Smith?
Captain Lawrence. No; I did not.
Mr. Griffin. Officer E. L. Smith?
Captain Lawrence. No; I did not.
Mr. Griffin. Do you know of anyone in the police department who questioned those men after the assassination to determine whether or not they had been observing the windows of the Texas School Book Depository Building and had seen anybody in those buildings?
Captain Lawrence. I know that all of these men have been questioned and that they were calling all of these men to be questioned and that this investigation was being handled by the Secret Service, and this is one reason why I did not question these men.