05/04/2012 07:03 EDT | Updated 07/04/2012 05:12 EDT

Barrie Hotel Deaths: Mark Dobson Charged With Murder

BARRIE, Ont. -- Two women who were found dead at a hotel in Barrie, Ont., this week were both stabbed in the neck.

Helen Dorrington, 52, of Cold Lake, Alta., and Mary Hepburn, 32, who recently moved back to Barrie from Alberta, were found dead Wednesday.

Autopsies were done Thursday.

Mark Dobson, 22, of Barrie, has been charged with two counts of first-degree murder.

Police say he used to live in British Columbia and then moved back to Barrie in July, 2011.

Police say all three people were known to each other, but haven't said how.