A killer who admitted to carrying out a “horrific” rape two years before murdering a student will be sentenced today at the Old Bailey.

Jason Dockrill, 46, was convicted of the “sadistic and sexual” murder of 23-year-old University of East London student Suvi Aronen in March 2003.

He is currently serving a life sentence with a minimum 25-year jail term for the murder of Ms Aronen whom he sexually assaulted and killed near Wanstead Common in March 2003.

The unemployed fitter was linked to another attack on a stranger in a park in November 2001 following a cold case review and faces sentencing at the Old Bailey today following an adjournment in July.

He has pleaded guilty to rape and two counts of indecent assault.

Dockrill was also convicted of attacking three other women in the hours leading up to Ms Aronen’s death, for which he was jailed for a total of nine-and-a-half years, to run concurrently.