>> warren left for dallas because he was a man who had spent his early career as a courtroom prosecutor. he understood a crime scene. window and see if this was a shot that a marksman could make. while he was there, warren felt he should talk to ruby. there were all these suggests ruby had killed oswald to silence him. so he wanted to hear from ruby himself. >> the warren commission realized they were going to have to invest a lot more time than was anticipated. this may be a two to three-month operation to the conception that it will probably take six months. >> the hour glass of time was running out on them. >> can you say if you still think it was one man? >> i think we'd better not get into that area, you know. the report will cover all of that in great detail. >> this committee labored ten months, then brought forth a document close to 1,000 pages. president johnson received that