Henry was an old-school hobby entomologist and unpopular as it currently was, he still employed a killing bottle to capture insects. He used ethyl acetate because it's less toxic to humans than ether, chloroform or potassium cyanide. His hobby was unusual, he knew, but he never sought to share it with anyone. He'd always been a loner, his days spent either at work or collecting. In the evenings he tried to forget his loneliness with the help of liberal doses of whisky, the drink that didn't make him feel wrecked next day. He died of cirrhosis of the liver.