KBA - On 28 March 2009, 23-year old Kerby Revelus, left, beheaded his 5-year old sister Bianca, top right, and stabbed Samantha, 17, centre right, to death. Another sister, Saraphina, 9, bottom right, managed to call the police during the rampage. She suffered several stab wounds during the attack. Police shot and killed Kerby before he could kill Saraphina. Their parents were at work and their grandmother was downstairs doing laundry.