“The Metropolitan Opera House has also had its brush with murder. In 1981 a Met stagehand, Craig Crimmins, was sentenced to 20 years to life in prison for hurling a violinist, Helen Hagnes Mintiks, to her death down an airshaft from the roof of the opera house. Ms. Mintiks had disappeared during an intermission of a Berlin Ballet performance.”

(“Many nights at the opera involve emergency room” – NYT)