The entire investigation process was quite bumpy, mainly because Jimmy encountered three robberies in one day, two of which involved stealing his own motorcycle, which was quite embarrassing. He had to take one person to the orthopedic hospital, beat up a few others, and then find a restaurant to eat and cool down.
In this lousy place, if you're not somewhat capable, wandering the city is akin to courting death. Luckily, it was broad daylight, and Jimmy didn't fire his gun; otherwise, he'd probably be having a harder time investigating, ducking the police and all.
