Task: Question Answering
Input (English): Michael Hall said his brother showed him Winter's body when it was wrapped in a tarp and lying in a trash can in a basement storage and laundry area at Fairlawn Greens Apartments , 5237 S.W. 20th Terrace , where the three men lived . At one point , Christopher Hall was showing the body to Michael Hall when they " dumped her out , " Michael Hall said . Christopher Hall said he killed her after he and Winter were smoking in his apartment , there was an altercation , and she tried to leave , Michael Hall testified .
Output (English): Why were they smoking ?