Was Herman killed by his evil wife?

Dear sirs, please to ask if friend contact Mr Herman was killed by evil wife? Have the authorities questioned her? I understand she was very evil and wished him dead on many occasions and once poisoned him with the tainted donuts. I am so distressed to hear news of his demise. He was always helpful with advise of my own horrid wife and evil mother in law. Do you believe he was murdered or died due to his lifestyle?