Canadian police link Gary Allen Srery to unsolved Calgary killings

Police in Canada have used DNA evidence to link a deceased convicted U.S. sex offender to the killings of two women and two teens from almost 50 years ago, and they say he may have been involved in other unsolved homicides or sexual assaults in western Canada.Eva Dvorak and Patricia “Patsy” McQueen, both 14, Melissa Rehorek, 20, and Barbara MacLean, 19, were killed between 1976 and 1977, their bodies found in or around the city of Calgary, Alberta.