Jeremy Vine says his stalker Alex Belfield has already put out a video saying he'll be back.
Belfield, a former local BBC radio presenter, was last week sentenced to five years in jail for masterminding an 11-month campaign of online harassment against Jeremy and other victims.
The 42-year-old targeted Jeremy and despite being behind bars, Vine claims he still has access to social media and claims he'll be 'back soon'.