Singer Jessie J, who performed at the BlackBerry-sponsored party, says she is "lost for words" at the news of a fatality resulting from a stabbing at the event.
Phillip Sherriff, 37, died in hospital this morning after a four-day battle to save his life.
I am lost for words. All I can say is my thoughts, love and respects are with the family and (cont) http://t.co/s7yrrC19
Her full statement reads:
"I am lost for words. All I can say is my thoughts, love and respects are with the family and children of the man who attended the blackberry gig last week who sadly lost his life this morning. So sad..."
More top news
Breezy and wet tonight as rain sweeps in from the west meaning a miserable start to Sunday morning.
BBC Political Editor Nick Robinson has revealed Labour tried to recruit him to be Ed Miliband's spin doctor in the run-up to the election.
Nasa has begun its countdown for a mission to discover whether life might exist on Jupiter's moon Europa.