Many offenders come out reformed from the rehabilitation centres. 

However, some struggle to be accepted by society after release, which pushes them into despair. 

One such person facing this predicament is Windhoek's Katutura resident, Petrus Mayunda (53), who did stints as an inmate at the Windhoek Correctional Facility in 2017. 

His offence was dealing in drugs, but he was released later.

He was known as the most notorious gang leader, and he was feared by many.

But now. Paulus Shimweefeleni, well known as "Ninja," says he is a changed man as he takes the walk of freedom from the Windhoek Correctional Facility tomorrow, where he had been a resident for 25 years, sentenced for murder.

In a special report, nbc News reporter Selima Henock sat down with Ninja, who shared his journey of crime and transformation. 

Shimweefeleni is a man who was once feared and whose name caused a chill up the spines of those who crossed his paths over two decades ago.