Charities have paid tribute to Alison Morrison, a senior manager at the consumer charity Which?, who was killed in north-west London on Thursday morning.
Morrison, who was 45, was stabbed in a Harrow street and taken to a local hospital, where she died from her injuries.
She was head of customer experience for the Which? Trusted Trader scheme and vice-chair of her local Safer Neighbourhood Board. Morrison was also chair of the reading and book provision charity Booktrust between 2005 and 2007.
Trevor Gibbon, 48, from Windsor Street, Harrow, appeared at Hendon Magistrates Court in north London on Saturday charged with her murder. The case was referred to the Old Bailey.
Peter Vicary-Smith, chief executive of the Which? Group, said: "We are deeply saddened to hear of the death of our colleague and friend Alison Morrison. Alison was a hugely popular member of staff and her sudden death has come as a great shock to us all. Our thoughts are with Alison's husband, son and family at this terrible time, and we will be doing all we can to support them."
Viv Bird, the outgoing chief executive of Booktrust, who was recruited by Morrison, said: "We are shocked and saddened by the news. Our condolences go out to Alison’s family and friends. Alison was chair of the board of trustees when I first started at Booktrust. She has always been very generous in her support for the charity despite having lots of other priorities."
Chief Superintendent Simon Ovens, borough commander for Harrow, said: "I had the pleasure of knowing and working with Alison in her role as the vice-chair of our borough's Safer Neighbourhood Board. She was held in high regard locally, and truly cared about the borough. Her input to policing as a 'critical friend' has been invaluable – she was someone who always provided honest feedback."