A violent and controlling killer beat an ex-girlfriend over the head with a hammer and throttled her to death with a dressing gown cord.
Triple-killer Theodore Johnson is facing life behind bars after pleading guilty to murdering Angela Best, 51, in December 15 2016 after they broke up and she started a new relationship.
Johnson, 64, of Islington, north London has a history of violence torwards women and has twice been convicted of manslaughter before.
Garage worker Johnson had previously been convicted of killing his wife by throwing her off a balcony in 1981 and strangling another former partner in 1993.
Hours after killing mother-of-four and grandmother Ms Best, Johnson threw himself in front of an express train at Cheshunt railway station in Hertfordshire but survived despite suffering horrific injuries.
When police went to his home they discovered Ms Best’s body in the living room with a belt wrapped around her neck, and a blood-stained hammer nearby.
The wheelchair-bound defendant had pleaded guilty to the manslaughter of Ms Best by diminished responsibility but denied murder.
He admitted the murder charge on the first day of his Old Bailey trial, as prosecutor Mark Heywood QC was preparing to open the case to the jury.
In November 1981, the garage worker was convicted by a jury at Stafford Crown Court of killing his wife, Yvonne Johnson.
Following an argument, he hit the mother-of-two with a vase before pushing her over the balcony of their ninth-floor flat in Wolverhampton.
Then in March 1993, he was convicted at the Old Bailey of killing his partner, Yvonne Bennett, by diminished responsibility.
The couple, who had a daughter together, had moved from Wolverhampton to Finsbury Park in north London, where Johnson strangled Ms Bennett with a belt after she had an affair with another man.
On his release from a psychiatric unit, Johnson met Ms Best around 1995 after she moved to Tottenham in north London from Manchester with her children.
Ms Best’s two sisters sat in court as Johnson entered his guilty plea.
Judge Richard Marks QC remanded him into custody to be sentenced on Friday.