psychopath
n
person suffering from a severe mental or emotional disorder,esp one who behaves in a violently aggressive or antisocialway 精神变态者, 精神病患者(尤指行为有破坏性或危害社会者).
It had been baked by a college student who had used over 1,000 pounds of flour, 800 pounds of sugar, 200 pounds of fat, and 400 pounds of various other ingredients.