LATE on April 1, a day after the sensational killing of two businessmen by a police team, Nikhil Kumar was in Bihar Niwas, desperately trying to placate a group of angry students. He had just been asked to step down as police chief and this group of Jawaharlal Nehru University (JNU) students refused to disperse till they had met Bihar Chief Minister Laloo Prasad Yadav to protest against the killing of a comrade, Chandrashekhar Prasad, twice president of the JNU Students' Union and a leader of the CPI(M-L) Liberation.