bhopal a 40yearold man who protested to loud music being blared out by his neighbours during the night hours at a birthday party in sagar district was killed and his son greviously injured after those partying assaultedthe deceased identified as balram a resident of motinagar had complained to police about loud music and it enraged his neighboursthe inciudent took place late on friday police said that balram and his son vicky 18 were attacked by a group of people after they lodged a coimplaint the brother of the deceased told the local media that the neighbours were furious and immediately attacked balram after the music was stopped he said that his brother was attacked with a sword on his headthere were 15 people who had hatched a conspiracy to kill my brother they include babloo his son sooraj ramesh and his son rajkumar and rahul among others the deceaseds brother saidboth were rushed to a hospital but balram died the accused have been arrested said police