The man who blew the whistle on a series of deaths at Columbia’s VA hospital says the lab that ran the tests on the victims is monumentally incompetent. Gordon Christensen says National Medical Services Laboratories made mistakes in the criminal case. And, he says the lab also made mistakes in a wrongful death civil lawsuit five years ago. Former hosptial nurse Richard Williams has been released from jail and all charges have been dropped. The prosecutor blames faulty test results for the action. Christensen says the entire case needs to be investigated, including the lab’s handling of the evidence. Christensen is a professor at the University of Missouri medical school.