"I am shocked and I don't understand what may have led him to commit such an act," Prakash said by phone from Aurangabad where he lives.
"When our father died, Pravin was only nine years old and it was Pramod who looked after us, taking special care of Pravin, so what happened today has come as a terrible shock," he said.
Asked if the incident was over a property dispute, he said, "When there is no property, where is the question of dispute?"
Prakash, who is on his way to Mumbai from Aurangabad, said he would be able to comment further only after he reached the city and met other family members.