He is currently in jail, alone – and sick.
But those who paid him to produce documentaries that landed him in jail are enjoying life with the same people who jailed him. Not only are they enjoying life, they are in control of government meaning that if they wanted to free him, they could, anytime.
This is Africa. We know how things are done. Rupiah Banda freed Chiluba. Edgar Lungu freed Rupiah Banda. If Chimba was important to Rupiah Banda, he could have been freed through a Nolle prosequi before conviction.
But then, who is Chanda Chimba for them to waste time on? He has no money; he has no political influence.