Litigation, and criminal cases have been pending for more than five years in the wake of the Deepwater Horizon disaster. Charges have been dropped in the case of two rig supervisors. Robert Kaluza, and Donald Vidrine were each charged with multiple counts of manslaughter in the wake of the disaster that killed 11 workers. AP reports, the government botched its case against the two supervisors. They were charged with 11 counts each of seaman's manslaugher, and involuntary manslaughter. A judge dismissed the seaman's manslaughter charges, which require only proof of negligence for a conviction. Prosecutors dropped manslaughter charges against the pair on Wednesday. Vidrine has pleaded guilty to violating the Clean Water act, a charge that Kaluza says he'll fight.