If someone seals a deal and you kill him, you get the jewells. Why? People often manage to rip-off cause of lag or lousy boat synch, lolz
I don't think this will increase DM, actually reduce. A example could be someone who ripped off 10 ppl - he gets killed 10 times and still refuses to pay a cut. If this gets implemented, if he refuses to pay a cut and ripped off everyone or smuggled when someone else was suspossed to, the killer gets the jewels. There won't be a big war on streets cause basicly most of people don't run around with guns and most of smugglers are allied gangsters. Naturally if the smuggler sells the jewells then is killed, the killer gets no jewells.