<br/>All the three convicted in the whistle blower Satyendra Dubey murder case, have been sentenced to life imprisonment by a special CBI court in Patna. AIR correspondent reports that Mantu Kumar, Udai Kumar and Pinku Ravi Das were convicted by special CBI court on Monday.<br/><br/> CBI spokesman Harsh Bhal said that the investigation agency did not find evidence of possible conspiracy by contractors or mafia to kill Satyendra Dubey as alleged by his brother.