A Nova Scotia man is now the second person to be charged in connection to a 2008 double murder in Mission, B.C., where police were heavily criticized for not thoroughly investigating the emergency call.

Justin Andrew MacKinnon, 25, of Sydney, Nova Scotia, was arrested in Sydney on Thursday. He is now charged with two counts of first-degree murder in the deaths of Lisa Dudley and her boyfriend Guthrie McKay.

It is believed that MacKinnon will be transported to B.C., where he is scheduled to appear in Abbotsford provincial court on Monday.

Investigators say MacKinnon lived in four different provinces -- B.C., Alberta, Saskatchewan and Nova Scotia – before he was finally located.

Jack Douglas Woodriff, 52, was arrested on May 13 and faces two counts of first-degree murder.

Dudley was left bleeding and tied to a chair for four days after the first call to police from a rural Mission home on Sept. 22, 2008. She was discovered by a neighbour but died while she was being taken to hospital. McKay, died at the scene from gunshot wounds.

The responding officer, Const. Mike White, was dispatched when authorities initially received a call of six shots fired, but he said he didn't see anything and didn't get out of his squad car to investigate.

White was later docked a single day's pay at an RCMP disciplinary hearing.

After the incident, RCMP policy was changed to require officers to speak directly to the person who makes a 911 call about shots being fired.

Neither victim had a criminal record or was known to police.