The family of Kim Buckley, Kayleigh and 6-month-old Kimberley said they felt 'justice was served' as Carl Mills was jailed for 30 years.
A statement, issued on behalf of the family by Gwent police, added:
"Carl Mills starts a life sentence for three murders but for us, the family and friends of Kim, Kayleigh and Kimberley, our life sentence started on 18 September last year when three beautiful innocent people were torn from our lives."
More top news
Clocks will go forward 30 minutes so there is half an hour more daylight in the evening when energy consumption peaks.
Tina Green is to be called before the Work and Pensions Committee as it looks into how the high street chain went into administration.
The Boeing 777 was reportedly intercepted by two Hungarian Air Force Gripens after it lost contact with air traffic controllers.