Islam was not involved in any significant political activity. He says he had limited himself to voicing his opinion on Facebook. He participated in the start of the June 30 demonstrations demanding the ouster of the Muslim Brotherhood, but he withdrew when he didn’t like the direction the protests were taking. He only protested once after that, to demand the release of his brother who had been arrested.
But Islam doesn’t think that any of that is relevant to his detention, which he firmly believes was arbitrary.
Islam says he felt that something was not right at the outset of his detention when investigators insisted that he knew why he was there and demanded that he confess, presenting him with the names of people of whom he had never heard.
Torture was the means.
▻http://www.madamasr.com/en/2016/10/19/feature/politics/disappeared-detained-and-tortured-for-no-reason-islam-khalil-recounts-his-story/?lang=hootsuite