Court documents show that a Texas man has been accused of killing his lover during a violent sex game gone wrong. Eighty-two-year-old Alan Bischof, of Houston, is charged with aggravated assault of a family member for the death of 65-year-old Craig LaMell. LaMell died from bleeding on the brain following a stay in a hospital ICU. Police say Bischof admitted, in a computer document and to them, that the two men were in a secret sadomasochistic affair for four years. Bischof claims that he violently beat LaMell at his own request for sexual pleasure, causing him to sustain injuries to the face, upper body and arms. The victim's death was ruled a homicide from blunt force head trauma. Bischof's confession letter was found on a work computer, which detailed how the married man wanted to kill himself for the accidental death of his lover.