Mary Konye remained calm and stony-faced as the guilty verdict was announced to a packed court room. Naomi Oni's mother jumped from her set and appeared jubilant at the verdict.
Judge, David Radford adjourned sentence until March 7 while psychological reports are prepared and said:
In ordering these reports my judgement is that in all likelihood the case well lead to a substantial custodial sentence.'But it will not be decided until I have had these reports - I do not want Konye to misunderstand the reasons.
More top news
Twelve fire engines and 81 firefighters along with police officers were called to the industrial unit where a blaze has been raging.
Fatmir Stafasani set up a makeshift climbing rig and got into his victim's flat via a skylight. He then lay in wait for her to return home.
Former boyband East 17 sold millions of records and enjoyed several top 10 singles.