thats what i read too, i found the article from xxl.
http://www.xxlmag.com/news/bloggers/2006/07/the-realest-killer/ According to this [confidential informant], there was a robbery at the Source Awards in Manhattan that never got reported to the police: a guy named Zack with Biggie and the Bad Boy camp had his gold chain stolen. I received word that Ben O’Gara–aka Killer Ben, the notorious gunman from Myrtle Avenue in North Brooklyn–had something to do with that. Not soon after, Killer Ben was shot with a .40-caliber handgun while talking at a pay phone in his Myrtle Avenue stomping grounds.
Informants in the street tell me Ben’s death was payback for that robbery, with Biggie commissioning the hit.