ROCHESTER, Minn. – The charge against a Mayo Clinic doctor accused of poisoning his wife was escalated to first-degree murder. The new charge followed a grand jury investigation, which is necessary under Minnesota law for a first-degree murder charge. Connor Bowman, 36, had been in jail since October on a charge of second-degree murder. A first-degree murder conviction could mean life in prison. The grand jury’s indictment included evidence released in previous documents from prosecutors. These included that Bowman was heavily in debt and cashed in on a $500,000 life insurance policy on his wife. Witnesses summoned by the grand jury included Mayo Clinic doctors and a nurse. Bowman himself appeared before the grand jury. .
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