- Theodore Johnson jailed for 26 years after admitting murdering Angela Best.
- Had two previous convictions for killing partners in 1981 and 1992.
- Met his third victim while on day release from mental hospital.
Theodore Johnson, 64, admitted to bludgeoning Angela Best with a hammer and strangling her with a dressing gown cord at an address in Islington in North London on 15 December 2016.
Johnson murdered his 51-year-old victim a couple of months after the pair had ended their 20-year relationship.
During a trial at the Old Bailey, the court heard how the pair had met in the mid-90s while Johnson was on day release from a secure mental hospital he was sent to following the death of another ex-partner.
He pleaded guilty to the 1993 manslaughter of Yvonne Bennett by strangulation on the grounds of diminished responsibility. He was detained in the secure mental hospital but released in 1997.
Johnson also had a previous conviction for manslaughter after he pushed his first wife Yvonne Johnson over a balcony in 1981.