The ex-Tory prisons minister was found dead at her home in Haytor on Dartmoor on Thursday after sustaining serious injuries.
Ndodana Mkhanyisi Tshuma was arrested in Kensington, Johannesburg, and has since been charged with three counts of murder, the CPS said.
A man has been arrested on suspicion of murder in relation to the death of Ann Widdecombe - here is all that is known so far about the incident.
The hardest part of an underdog story is that you only get to tell it once. It's much easier to surprise people than it is to keep doing it.
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