PnB Rock’s fiancee gave a harrowing testimony on Tuesday. PnB Rock’s fiancée, Stephanie Sibounheuang, detailed the final moments leading up to his death while on the witness stand in the murder trial for Freddie Trone and Tremont Jones on Tuesday. In doing so, she accused Trone’s 17-year-old son of being the shooter and described Rock’s actions as “heroic.” Authorities claim …