Home Minister Asaduzzaman Khan Kamal has said those involved in Thursday's double murder in the capital's Shajahanpur area will be brought to justice and no offender will be spared. "Criminals will be brought to justice, no matter who they are,” he said while talking to reporters at his Dhanmondi residence on Friday evening. Detective Branch (DB) and Rapid Action Battalion (Rab) are working to find out the culprits, he added. Read: Case filed over Shahjahanpur double murder Law enforcers will soon be able to unearth the reason behind the incident, the minister hopes. Earlier, Zahidul Islam Tipu, former general secretary of AL Motijheel police station committee, and Samia Afrin Priti, a 22-year-old student of Begum Badrunnesa Government College, were killed while his driver was injured when an assailant allegedly opened fire at them in the capital's Shahjahanpur area on Thursday night.