Reuters journalists Wa Lone and Kyaw Soe Oo were held at the prison for more than 500 days following their arrest on 12 December 2017 , due to their investigation of the Inn Din massacre . Amid international outcry over their imprisonment , the pair were released on 7 May 2019 , following a pardon from President of Myanmar Win Myint . While imprisoned in Insein Prison , Wa Lone wrote a children 's book , '' Jay Jay the Journalist ''
Inn Din massacre
Inn Din massacre
Insein Prison