The Canadian police are searching for two teenagers suspected of killing an American woman and an Australian man this week in an isolated part of British Columbia — sending waves of fear through a part of Canada where crime is relatively rare.

The Royal Canadian Mounted Police said Kam McLeod, 19, and Bryer Schmegelsky, 18, were wanted in the shooting deaths of Chynna Deese, of Charlotte, N.C., and her boyfriend, Lucas Fowler, of Sydney, Australia. Their bodies were discovered, the police said, more than 300 miles from a burned-out camper that the suspects had been traveling in.

[On Aug. 7, the bodies of murder suspects Kam McLeod and Bryer Schmegelsky were located in the wilderness of Manitoba.]

On Wednesday evening, the police said they had charged the teens with second-degree murder in the death of Leonard Dyck of Vancouver. Mr. Dyck’s body, which was not identified until Wednesday, was found in a highway rest stop near the burned-out camper.