TOPSHOTS Bangladeshi secular activists take part in a torch-lit protest against the killing of blogger Niloy Chakrabarti, who used the pen-name Niloy Neel, in Dhaka on August 8, 2015. Dhaka vowed August 8 to hunt down the killers of secular blogger Niloy Chakrabarti who became the fourth such writer to be murdered in Bangladesh by suspected Islamist militants this year. AFP PHOTO/ Munir uz ZAMAN