Vancouver Police are looking for information to help solve the mysterious slaughter of a Vancouver family 57 years ago this week.

The VPD has added the murder of the Pauls' family to its cold case website, saying the triple homicide has frustrated investigators for decades.

The family owned a home in the 1000-block of E.53rd Avenue, and appeared to live a fairly ordinary life. David Pauls worked in the warehouse of the downtown Woodward's store. Helen worked evenings at the Home Fancy Sausage Shop on East Hastings Street. Dorothy was in Grade 6 at Walter Moberly School, where her fellow students described her as quiet.

"At some point during the evening hours of June 10th and the early morning hours of June 11th, the family was murdered — both parents were beaten and shot, and Dorothy was viciously bludgeoned to death," VPD said in a news release.

More information about the case can be found on the site: www.vpdcoldcases.ca

The second unsolved murder added to the site is that of Vancouver bartender Mayvette Monzon, who was shot to death in September 2005.

The Vancouver Sun highlighted Monzon's unsolved slaying in a story and video a year ago when the newspaper launched a website for unsolved murder cases.

The 31-year-old popular bartender was shot several times as she sat in her car outside the family home in the 1400-block of W. 53rd Avenue.

Police believe someone was lying in wait or followed her home from work. She was acquainted with several gangsters who frequented one of the bars where she worked.

Her sister Maria Franco remembers her generous nature and zest for life. "She was a friend to everyone."

VPD received anonymous information about the case, but no one has yet come forward to identify Mayvette's killer.