A year on from a family being shot dead in County Durham, the victims' relatives say they need the support from the public to get the gun laws changed.
Last New Year's Day a taxi driver, Michael Atherton, shot dead his partner Susan McGoldrick. He then killed her sister and niece Alison and Tanya Turnbull.
The family have now set up a petition to change the law so that people cannot own a gun if they have a history of domestic violence or substance abuse.
You can sign the family's petition here or at http://epetitions.direct.gov.uk/petitions/41060