An American blogger was murdered Thursday by machete-wielding attackers in Bangladesh.

Avijit Roy and his wife Rafida Ahmed were attacked as they were returning from a book fair, where Roy was launching his two latest books. Roy was killed, and Ahmed was seriously injured.

GRN’s David Bergman reported on tonight’s “On The Record” that Islamic fundamentalist group Ansar Bangla 7 has claimed responsibility for the brutal attack.

Roy, who was known for speaking out against Islamic extremism, had received death threats in the past, and Bergman said there’s “no question” that the attack was targeted.

Bergman reported that Roy received a threat on Facebook a year ago, warning that he would be killed if he came to Bangladesh.

Watch the full report above.