An anonymous reader writes: Ananta Bijoy Das blogged about science in Bangladesh, also sometimes tackling difficult issues about religion. He won an award in 2006 for "deep and courageous interest in spreading secular and humanist ideals and messages." He's now been murdered for his writings, the third Bangladeshi blogger to die in the past few months. Four masked assailants chased him down in broad daylight and attacked him with cleavers and machetes. The Committee to Protect Journalists says Das is the 20th writer to be murdered globally so far this year. Arrests have been made in Bangladesh for the murders of the previous two bloggers this year, but no convictions have yet been made. Das's murderers remain at large.