The inmates in the Danamora escape based on a true story were individuals who had been serving time for various crimes. They were determined to break free from the prison. Their actions not only put the local community at risk but also made the prison authorities look bad. They were quite resourceful in their attempt to escape, which is why they managed to get as far as they did before being caught.
In the real - life escape from Danamora, the two inmates were hardened criminals. They had been in the prison system for a while and had likely become familiar with its routines and potential weaknesses. They saw an opportunity to escape and took it. Their escape led to a great deal of public scrutiny of the prison and its operations. The authorities had to answer a lot of questions about how such a thing could happen, and the inmates became infamous for their audacious escape attempt.