CNN CNN Newsroom June 7, 2014 18:45:00
Case. we now know they had some of the truth but not all of the truth. >> reporter: in a new lawsuit, the meltons allege that gm hid key documents from them and say a gm engineer lied in a sworn deposition. >> the design reless engineer for the ignition switch in the '05 cobalt? >> yes, i was. >> reporter: the melton attorney gave cnn part of the deposition are ray degeorge yo who denied approving any changes to the ignition switch. >> there was never a work order that i saw outlining this in the spring. >> any such change was made, if it was, it was made without your knowledge and authorizati...