Frank Alexander couldn't have done anything, he was in the car behind the BMW. However, his story is exaggerated. His book (Got Your Back) was juiced up to make it sound more dramatic. If you don't believe me, read it again, he talks about how the gas light in the Lexus he was driving came on (yeah right) and about how his plane ticket had the numbers "666" and "13" on it (bullshit, I'd say). He even said Pac was throwing up the W in the picture of him on the stretcher after getting shot in New York, even though we all know Pac was just flipping off the camera, not throwing the W. Plus what he said in the Welcome to Death Row DVD was off (he stated that the Cadillac was just inches from the BMW, which is untrue, otherwise Pac's and Suge's heads would've looked like JFK's after he got assassinated). Frank did have a story to tell, but let's not kid ourselves, he wanted to milk it for what it was worth.