Review the Following Case and Answer the Questions Below

Essay

Review the following case and answer the questions below.
In late April of 2010, Robert Drown, Jr., pled guilty to charges relating to the 2007 murders of Jennifer Ison, 31, and her two daughters in Hitchins, Kentucky. Ison and her daughters, Shannah, 10, and Marissa, 3, were found dead inside their burned-out home in May 2007. Jennifer was strangled, Marissa died from smoke inhalation, and Shannah's death was caused by blunt force trauma to the head. Drown, a convicted sex offender, says he also raped Shannah before beating her and setting the home on fire. The convicted sex offender is charged with killing Jennifer Ison and her two young daughters last May, then torching their home to cover up the crime.
-Explain the motivation of the fire-setting behavior.