>> Piecing together the profiles of six killers, Bangladesh police on Monday trying to confirm the IDs of the attackers who shot and hacked 20 people to death at a restaurant in the capital, Dhaka. It's been three days since the attack, but police haven't released any full names. Reuters' Aditya Kalra says authorities have taken some flack for moving slowly.
>> There have been two criticism that police was late in storming the building that night and police has been slow in naming the individuals. The one thing which is repeatedly coming about the names is that the police is saying these people, they were changing their names regularly. It's not easy to track them, that's the impression we are getting from them.
But given all the uproar on social media, they have today launched an investigation to match the photos on Facebook with those of the dead bodies from Friday's attack. So they say they are going to match the photos, then they're going to look for family members. They're going to show them the photos and then even do DNA tests if required.
>> Prime Minister Sheikh Hasina has called for two days of mourning as the country reels from its worse attack in more than ten years. Details emerging online have also shaken the public. The young men apparently well educated and from wealthy families. Police are searching for clues on how the killers may have been lured towards extremism.
Islamic State has claimed responsibility for the attack, but Bangladeshi authorities insist it was the work of a local militant group. US Secretary of State John Kerry says Dhaka should carry out his investigation according to international standards, and that Washington is standing by to help if needed.