Peter Morgan has been sentenced to a minimum of 25 years in prison.
He was found guilty of murdering 25-year-old Georgina Symonds earlier today.
The time Mr Morgan spent on remand will be deducted from his sentence.
The jury reached a unanimous decision following the three week trial at Newport Crown Court.
Peter Morgan has been found guilty of murdering his escort girlfriend Georgina Symonds.
Peter Morgan strangled Georgina Symonds after claiming she threatened to release photos of him having sex with prostitutes, court told.
A millionaire developer accused of murdering his escort lover planned to poison her with anti-freeze because of her drug use, a court heard.