Mother Ami Dean was taken to Stafford Hospital on 30th October 2010.
The twins she gave birth to were 13 weeks premature.
After their condition deteriorated, they were transferred to University Hospital of North Staffordshire but died on November 1st.
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Detectives investigating the unsolved murder of a mother-of-two have obtained a DNA profile which may identify her killer.
Remaining cloudy with outbreaks of showery rain this evening and tonight. Tomorrow will be a day of sunshine and scattered showers
Mainly cloudy with showers this evening. Tomorrow, mainly fine and dry at first before showers develop through the morning.