He had demanded money from his mother on that particular day, but she only had $40 and gave him that. He had demanded more, but became angry as she did not have money. He left the house, but returned later in the afternoon. He then flared up after his mother told him his girlfriend had looked for him. He threatened to burn the house down. He went to the kitchen and cut the hose of the LPG gas cylinder which supplied gas to the kitchen stove.