A plot hole
I didn't like the story, it was too poor, and though Hyams tried to hide it by unnecessary long sequences of car chases he couldn't make audience really involved in the story. The authors had no success in making us wonder either who did it or why did he do it, though both questions appear in the movie.
And not only the story didn't contain much, but it contained an important plot hole.
*** SPOILER ***
When Lawrence was hit by a car, it appeared to be a car of his companion who was afraid that, if caught and interrogated, Lawrence might confess and send them all to jail. So, the plot suggests that Lawrence was killed by intention.
However, we can see that Lawrence was running through several blocks sometimes changing his direction. Even if the killer tried to follow him, he couldn't have predicted where would Lawrence go. And he hit him in the moment when Lawrence appeared from the small street hidden by big buildings, so there is no chance that a driver could have seen him more than a second before. How could he know that Lawrence would appear at this point, and that moment? Not to forget that Lawrence was losing power, his last few meters were much slower, and he simply wasn't able to run across the street any more. Nothing that the driver/killer could have known. Unfortunately, the story develops as if this was a crucial point, a planned execution, and by finding who owned the car the investigators managed to complete the puzzle and solve the case.
Completely implausible and ridiculous. Even if for Hollywood action movie, this is too much.