Like many of his peers, the 35-year-old laborer Sattar Becheshti was devout and lived at home with his mother. But his life changed when he started a blog called "My Life for Iran" last year.
His entries often focused on the struggles of the working class as well as the political restrictions in Iran, sometimes mixed with personal anecdotes from Beheshti's daily life.
As months passed, the tone on the blog became sharper and more political, with unveiled criticism of the establishment and even the Supreme Leader, a red line in the Islamic Republic.
In one recent post, Beheshti criticized a speech made by the leader, Ayatollah Ali Khamenei, at a meeting of the Non-Aligned Movement in Tehran with the title "You presented a bunch of lies instead of a speech" superimposed over a picture of the cleric.
Other posts faulted Iran's unwavering support for Hezbollah in Lebanon or highlighted the plight of human rights activists.
Retaliation quickly followed.
"Yesterday they threatened me and told me your mother will soon be wearing black," Beheshti wrote in a post on October 29.
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