Who is the prime suspect, if any? Give your evidence.

The Ang Mo Kio Case Acting on information, police enter a fourth floor apartment in Ang Mo Kio at 4 am. They find the dead body of an adult female on the floor of the front room, at the foot of the book shelf. She is Iying face down. There is no sign of any disturbance in any other room, but bloodstains are found on the stairs leading to the ground. Inspection of the body reveals severe bruising and abrasion to the head and abdomen. There is some discolouration of the front of her body. The medical examiner subsequently determines that death was caused by a severe blow to the head. leaving a circular indentation and causing a fracture of the skull. The rectal body temperature is found to be 33C. You may take normal body temperature as 37C. The temperature in the room is 27C. There is no air conditioning. The arms but not the legs are stff. Enguiries yield the following information. Witness 1, who lives in a neighbouring apartment, reports hearing a disturbance in the apartment at 10 p.m. Witness 2 reports that the resident of the apartment was on bad terms with the landlords, Mr. and Mrs. A, and their two sons. Witness 3, who was looking out of his window from the opposite apartment block, reports seeing the sons of Mr. and Mrs. A leaving the victim's block soon after 11 pom.. Scrapings from under the deceased fingernails provide material for DNA analysis. The STR gel electrophoresis of this material and some suspects are shown in figure 1. Diagrams showing blood spatter patterns in the room are shown (figures 2-4). fingermail sCrapings Olgest 50N figure 1: DNA analysis FLOOR PLAN . Blood Spots on Floor Window 1 Bookshalf Window 2 Ashtray Entrance Door loved bur not lacked] Coffee Cups In Floor Brown Stain Hack Door to Other Rooms figure 2: plan of room WEST WALL Mood Boatcar Table TV Ashtray figure 3: West wall