A son visits his dad's to look after his dad as his dad is feeling unwell with some medical conditions. The son is feeling frustrated while looking after his dad and the son tells his dad to die if he wants to. Few days later, his dad passes away. His body looks yellowish, skinnier, and huge bruising on his forehead. The son claims the cause of his death is falling off a chair. Do you think what the son claims is true? If so/not, why? And what might have been the cause of his dad's death?