work and very happy to do what the trainer, danielle, would ask him. >> the instructor, danielle alvarado, fell for his personality from the moment he began working with him. >> o'neil, forward. he has such a good work ethic, and he loves to train. >> reporter: danielle has been training o'neil for eight weeks on the day they lead to downtown san rafael for his final guide work test. it's late morning, and danielle, todd, and o'neil are walking up 4th street at the end of the route. danielle is playing the role of the client, wearing a blindfold, while todd spots her. security cameras on the local buildings are recording them. >> my big job was to assess o'neil in his guide work. and danielle's job was to work him under blindfold and make sure he's doing all the fundamentals that need to be completed. >> there's no way they were ready for what happened next. >> i heard this pop, the breaking of the glass of a window behind me. and i just see this car -- >> a car is rapidly backing...