daughter that they murdered his mother. >> translator: he mailed an explosive to his mother whom he had known since childhood and it killed my mother. >> czech news reports say he was involved in the plot to kill his mother to gain an inheritance but kuna denies that. >> translator: i just wasn't able to protect her. i could have protected her if i had gone to the police at that time. but you can't go back and undo it. once it was set in motion it was like being on a plane and not being able to jump off. the only thing i can take comfort in is the fact that nothing happened to my daughter. even though i missed out on her childhood, and of course i regret that. >> kuna's daughter was 6 years old when he entered prison 14 years earlier, and he counts the loss of his relationship with her among the many consequences he's dealt with. >> translator: i was planning on hanging myself. i spent a lot of time feeling sorry for myself. but then i started to think, it's the wrong way to think