A serial stalker, serving life for bludgeoning a Finnish student to death in Wanstead in 2003, has been sentenced to a further nine years in prison.

Jason Dockrill was handed the jail term at the Old Bailey earlier today, by Judge Rebecca Poulet, for a stranger rape two years before the murder.

Dockrill evaded capture after attacking a women near Tower Bridge in November 2001.

The 46-year-old, who has a personality disorder, was linked to the rape last year after a cold case review, and admitted the offence and two counts of indecent assault on May 23.

Dockrill had already been sentenced to life imprisonment for the brutal murder of Suvi Aronen in Wanstead Park, Warren Road, in March 2003, which shocked the community.

He had assaulted three women in the area, one as old as 80, when he encountered Miss Aronen in an underpass.

Dockrill killed the 23-year-old as her distraught mother heard her pleas for help from 1,000 miles away over a mobile phone.

The court heard Miss Aronen said “stop it, you’re hurting me” before the phone went dead,

Dockrill left her body horrifically mutilated in foliage nearby.

Judge Poulet said the crime was “a most terrible murder of a young woman”.

She continued: “It was described by the then Recorder of London as brutal, sadistic and predatory.”

The judge added that her remarks and details of the case should be put before the parole board for any application in the future for his release.

Additional reporting by Press Association.