Pakistan's Supreme Court has upheld the death sentence of Qasr Ayub, a 49-year-old Christian father of three, who was accused of insulting Islam's prophet Muhammad through online posts.
He was accused in 2011 of publishing blasphemous material on a website linked to Kaiser's name.
Caesar claims that he closed the site in 2009 and that another person subsequently operated it without his consent.
Lawyers have raised serious concerns about the evidence and intimidation surrounding the blasphemy trials, revealing that an extremist mob threatened judges with death if they refused to impose the death penalty.