Set up - absolutely pointless

Nothing to it, really. I watched the whole thing to be able to  form a full opinion, but it didn't get better, it got worse. 50 Cent Jackson plays Sonny, the protagonist. He has two friends: Dave and Vince. Vince has a father in prison, Dave has a nice wife. The three of them are criminals, and together they steal diamonds for five million dollars, but instead of splitting the money Vince shoots both. Dave dies, Sonny doesn't, and this is already a plot hole, since we had just seen him shoot another man, a simple shot right in the head. Now all of a sudden he fails to kill Sonny. But let's go on. A hitman instead of killing Sonny and going after Vince to retrieve the diamonds, asks Sonny to find Vince and give them back! Absurd? Yeah. Sonny goes around telling all the tough criminals he finds to tell Vince he's looking for him. Good move, man! Really clever!
Not surprising that the mob boss (played by Bruce Willis) gets angry, so Sonny has to do a job for him. He takes the money from the russians without killing them, they he and the "muscle" working for the boss go looking for some drug, and the big guy shoots himself while playing with guns!! Oh please, they should leave these kind of things to Tarantino! Sonny doesn't say anything to the boss, afraid he won't be believed. Despite being just a thief not a murderer, Sonny knows a butcher who will make hamburger our of the body, as if it was a normal thing! Then Sonny thinks "Vince took care of the plan, this means that driver-girl must be part of it"... what? Why??? It makes no sense! It turns out the girl was working with Vince, and is later killed by the hitman looking for the diamonds. The hitman is later killed by Vince. Not much of a hitman, is he? Able only to kill a girl in her pijama. You'd think they would send someone better to retrieve 5-million-dollars-worth of diamonds!
Sonny suffers for Dave's death, they were friends, so he goes to his funeral and talks to the wife. I'd have thought she would have questions, since three of them went out, then one disappeared, one is dead, and the other one is now in front of her. But she only says Hi Sonny and hugs him, without asking him What happened.
Since Sonny didn't go back to the boss with the money, he's now looking for it. Kidnaps the two russians and tortures them to know the truth. I don't know what the first says, but the second actually told the truth, that Sonny had the money and that was all he knew, but the boss doesn't believe it and kills him too. Then Sonny goes to him saying: Vince came, stole your money and killed your man. And the boss believes him, just like that!! Absurd!
Boss Willis with his men and Sonny then meet with the other boss ready to hand over Vince and put an end to it, but a stupid guy starts shooting, so they all start shooting, and I suppose they all die. All except Sonny and Vince, of course. Which is to say, all the tough mob guys just stood there shooting and getting killed, while the two young criminals ran away. Of course, what's strange about that? Oh my...
At the end Sonny finally gets to Vince, he puts him in the car, drives to an isolated place, pours petrol all over him but doesn't set him on fire, instead tell him to dig a big hole in the ground!??!? Vince refuses and they talk. Vince explains he needed money to protect dear old dead, who actually is a real bastard even to his son, then Sonny leaves him there. He doesn't kill him because "I'm not like you". He then takes the money he stole and drives away. saying "I could live knowing he's still alive. Question is: could he?" ... I'll tell you:yes! What kind of an ending is that???Stupid as the rest of it, sure, no surprise.