A 13-year-old Thai girl has confessed to killing her seven-year-old sister while arguing over a toy and a mobile phone, in a case that has attracted attention online because of the young ages of the suspects. Police were called to a village in Sangkhla Buri district, Kanchanaburi province, on May 30 after seven-year-old Nong Agnoon went missing. Her body was found in a rubber plantation about 600 metres from her home three days later, according to ThaiPBS. There were no signs of a struggle or...