An 'evil' mugger jailed for robbing a 96-year-old grandmother who died days later has had his sentence increased after admitting more attacks on women.
Michael Nartey, 26, of Courtenay Avenue, Harrow, was jailed last September for targeting Mary Ann Sear as she walked home from her birthday party at her daughter's house.
The great, great grandmother, known as Nanny Rosie to her family, was taken to Northwick Park Hospital, in Watford Road, Harrow, with a broken hip and dislocated shoulder but suffered as massive heart attack less than a week later.  

Nartey had struck her from behind and snatched her handbag containing her bus pass, birthday cards and £60 in cash. He also admitted stealing £1,000 from a 37-year-old woman during a similar assault a month earlier in Harrow Weald. He was locked up last September and told to serve a minimum of four-and-a-half years.
But on Friday (Aug 15) the career criminal's term was increased to a minimum of six years after he admitted attacks on three other women in Finchley just days before the incident involving Mrs Sear.
Nartey said he robbed Elizabeth Jones while the 79-year-old returned home and snatched her bag in April last year.
He also admitted to attacking 87-year-old Peggy Marsland by grabbing her handbag when she returned from a shopping trip and burgled the home of Linda Martin, 89, taking her bag in May last year.
A pathologist could not identify a link between the attack on Mrs Sear, which happened in Weighton Road, Harrow, and her death.
Nartey carried out the robberies to raise cash to pay off his drug debts after becoming a crack cocaine addict at the age of 15.
Recorder Peter Clarke QC told Nartey he had narrowly avoided a life sentence by pleading guilty on the eve of his Old Bailey trial. He said: "You may have been worried about your safety but the matter I hope is beginning to dawn on you that in the last years all four of those surviving women will always worry for their safety and will never venture outside their front door without fear that somebody as evil as you has been watching them and waiting to repeat the offence."
Nartey will not be released from prison until the parole board decide he is no longer a threat to the public.