Roselyn Richards fears her daughter's killers are in Jamaica

Roselyn Richards, who came to the UK after Toni-Ann Byfield was killed in 2003, will appeal. Supporters said she was "very low" after hearing the news.

Toni-Ann was shot as she fled from the gunman who killed Bertram Byfield, the man she thought was her father.

Ms Richards believes the killer may be in the Caribbean. The Home Office said it assesses cases on individual merit.

But it would not confirm details of Ms Richards' claim, saying it does not discuss individual cases.

Cheryl Sealey, organiser of Community Victim Liaison, which supports the victims of violent crime, said she had spoken to Mrs Richards after hearing of the decision to deport her.

'Certain death'

She told BBC News: "She believes, if she is sent back, it will be to certain death."

Ms Richards will now lodge an appeal on behalf of her and her two sons, aged 11 and 14.

Earlier this month all three were on a plane bound for Jamaica following attempts to deport them, but were taken off at Heathrow, following a last-minute appeal by campaigners.

They have since been held in an immigration detention centre.

Toni-Ann and Bertram Byfield were shot in a north-west London bedsit

Ms Richards said she wanted to stay in the UK to hear an inquest into her daughter's death and an inquiry into Birmingham Social Services.

Toni-Ann had been in the care of the city's social workers since November 2000 but was often allowed to visit Bertram Byfield, who was known to be a crack dealer, at weekends.

Backed by Community Victim Liaison, a group which supports families of violent crime, Ms Richards submitted an application to the Home Office to extend her stay in the UK - but it arrived two days after the deadline.

Toni-Ann was murdered in Harlesden along with Mr Byfield in September 2003.