"We want the guilty to be brought to book. We want a detailed probe into the incident by a retired judge of the Madras High Court," BJP state president Pon Radhakrishnan told PTI.
"We don't want any probe similar to that of a formality. We want a detailed probe so that such incidents don't happen in the future," he said.
BJP State General Secretary V Ramesh was hacked to death by unidentified assailants near his house in Salem last night, police said.