Halifax Regional Police are renewing calls for clues in the murder of Helen Diane Knickle, almost 39 years after her death.

Police say someone walking along the Halifax Common found an unresponsive woman just before 3 a.m. on July 26, 1974 and phoned police.

Police determined the 22-year-old woman had been walking alone between 1 a.m. and 2:30 a.m. when she was attacked.

Knickle had been living on Cook Street in Halifax at the time of her death and police believe there are people who have information that could result in an arrest and possible charges.

Anyone with information about the case is asked to contact Halifax Regional Police at 490-5333.