Nawa Bazar police in Palamu have arrested the killer son Nagender Chowdhury on Thursday who on Wednesday had axed his mother Mirgeeya Kuarn to death over some family dispute said DSP Heeralal Ravi. Police have seized the axe with which this murder of a woman was committed. Police arrested him in a day's time only. DSP Ravi accepted the villagers had detained Nagender Chowdhury and called the police who brought him to thana for remanding him in judicial custody on Thursday.