Answer:
Malicious
Explanation:
Malicious means that is was an action done on purpose to cause or do harm.
I believe that the car wreck was not a malicious act on Roger's part, but instead a misjudgment of space between himself and the curb.
Misjudgment means to be mistaken of wrongfully judge. Which also uses means it was an accident. So if it was an accident then malicious would be the answer since it means to do on purpose.