The death of Dromore woman Peggy Stronge is to be reviewed by police as part of the investigation into the deaths of three other women in the town.
Her death took place some 40 years ago. It is understood that the Stronge family have been made aware of the development.
Last week 66-year-old Leslie Ross was charged the murder of 47-year-old Michelle Bickerstaff, who was found dead in April last year and 50-year-old Margaret Weise, who died in August 2007.
An investigation is also continuing into the death of 52-year-old Elizabeth McKee who died in December 2002.
As well as a further charge of gross indecency with a child, Ross, from Meganlis Park in Dromore, is also accused of carrying out an indecent assault.
Detective Chief Inspector Richard Harkness said, “My officers have advised the Stronge family of this development. I believe it is an appropriate and necessary step, given our current understanding of events in the town.
“We will progress the review as quickly as possible. I would like to repeat my appeal to the community in Dromore for information about all these deaths. My officers are keen to speak with anyone who may have any information which could assist our inquiries.
“If you have any information please contact detectives on 028 3751 7329 from 9am to 10pm Monday-Friday. Alternatively, a message can be left outside these hours or people can contact the independent charity Crimestoppers on 0800 555 111.”