Jealous woman who was having affair with sister's husband is jailed for stabbing her to death

A scorned lover has been jailed in England for at least 22 years for a ferocious knife attack on her own sister in a bid to win back the affections of her brother-in-law.

Carer Sabah Khan, 27, had been having sex with Hefeez Rehman, husband of her older sister Saima Khan, 34, with whom she was living in Luton, Bedfordshire.