A prominent American blogger of Bangladeshi origin was hacked to death with machetes by unidentified assailants in Dhaka with the atheist writer's family saying he had received numerous threats from muslim extemists.
The body of Avijit Roy, founder of Mukto-Mona (Free-mind) blog site which champions liberal secular writing, was found covered in blood after the attack which also left his wife critically wounded.
Roy is the second Bangladeshi blogger to have been murdered in two years and the fourth writer to have been attacked since 2004.
Muslim extremist groups have long demanded the public execution of atheist bloggers and sought new laws to combat writing critical of Islam.
Roy's father said the writer, a US citizen, had received a number of threatening emails and messages on social media from hardliners unhappy with his writing. Ajoy Roy told AFP that his son was a secular humanist and has written about ten books
including his most famous, Biswasher Virus (Virus of Faith).
Roy's killing also triggered strong condemnation from his fellow writers and publishers, who lamented the growing religious conservatism and intolerance in Bangladesh.