Commonwealth v. Lezynski

The defendant, Robert S. Lezynski, was tried before a jury in the Superior Court on indictments charging him with manslaughter and possession with intent to distribute a class B controlled substance (fentanyl)1 in connection with the death of Richard Beaulier; the jury found the defendant guilty *114only of the drug charge. At trial, evidence concerning the results of laboratory testing and toxicological analysis of Beaulier’s blood, showing the presence of a high level of fentanyl, was admitted during the direct examination of a toxicologist testifying as an expert witness for the Commonwealth,…