Home minister Asaduzzaman Khan Kamal on Saturday said Tonu killers will be tried He told this to journalists after a Independence Day programme at Razarbagh Police Lines held in honour of the police martyred in 1971.“Detectives are working on the incident. We resolved many big mysteries. This mystery also will be resolved. However, it may take a bit time,” he said.Protests erupted in various parts of the country demanding arrest and exemplary punishment of the killers of Comilla Victoria College student Sohagi Jahan Tonu. She was killed in the Comilla cantonment area on Sunday night.