the driver was george labarge, 41 years old. he was married with a young son. >> george labarge was a 14-year veteran of the secret service from dayton, ohio. he had been, for many years, assigned to the protection detail of the vice presidents. >> as the three agents made their way eastward towards yosemite, deputy sheriff rod sinclair of the mariposa county sheriff's office was preparing to check the road closings for the queen's visit. >> rod was a big man, heavy, and was quite macho and authoritative. >> we had heard, but we never deduced hard evidence of this fact, that sinclair was something of a loose cannon. >> sinclair and another deputy climbed into a chevy impala patrol car, similar to this one, and sped west on highway 132 to check on the road closings. at the same moment, the secret service agents continued eastward in a small rental car. none of the agents was wearing a seatbelt. the road was wet from a light rain. both sinclair and the convoy of secret service agents believe the road had been cleared of traffic. >