1案例资料某年4月14日15时许,某村的独居老人邝某某(女,86岁)被家属发现死于其住屋二楼卧室,现场有血迹及血鞋印,家属报警。现场勘查现场是一幢二层旧楼房,周围均是旧闲屋。一楼门、门锁、窗户无撬压痕迹,一楼物品无翻动痕迹,地面无血迹;二楼卧室北面墙有一个门口,与楼梯相通, 1 case information At 14 o’clock on the April 14, 1998, the elderly living alone in a village Kwong Moumou (female, 86 years old) was found dead in the second floor of his home bedroom, blood and bloodshed on the scene, relatives alarm. Site investigation site is a two-story old buildings, surrounded by old leisure homes. The first floor of the door, door locks, windows without crowded pressure traces, no flip signs on the first floor of the goods, no blood on the ground; second floor bedroom north wall has a doorway,