HBO at long last has confirmed the first specifics about season two of drama series “ True Detective ,” including the casting of Colin Farrell and Vince Vaughn in lead roles.Story will revolve around three cops and career criminal who navigate a web of conspiracy after a murder.Farrell plays Ray Velcoro, a compromised detective whose allegiances are torn between his masters in a corrupt police department and the mobster who owns him. Vaughn plays Frank Semyon, a man in danger of losing his criminal empire when his move into legitimate enterprise is upended by the murder of a business partner. Justin Lin is on board to direct the first two episodes of the eight-episode season. Lensing is set to begin later this fall in California for a January premiere.There’s still no word about additional cast members, which are expected to include a femme in the role of a police officer.