01/04/2012 02:40 pm ET

New Year's Day Massacre: Family Members Mourn Murder Victim

Family members of three women brutally murdered by a suicidal shooter say they are "shattered" following the New Year's Day incident.

On Sunday, Michael Altherton opened fire on the Durham, Britain, home where his partner Susan McGoldrick and her family were celebrating the holiday. Altherton killed McGoldrick, 45, her sister Alison Tunrnbull, 44, and Turnbull's daughter Tanya, 24, before taking his own life, the BBC reports.

According to a family statement posted by the BBC:

"We as a family would like to take this opportunity to express our devastation at the loss we have suffered following the tragic events of Sunday evening and would like to pay individual tributes to each of our much-loved family members whom we have lost."

McGoldrick's 19-year-old daughter, Laura, escaped further tragedy by jumping from an upstairs window moments after suffering a bullet wound to the shoulder, according to The Telegraph.

In 2008, police temporarily confiscated Altherton's licensed weapons citing concerns regarding his mental state. Police returned the weapons following Altherton's successful appeal, the Guardian reports.