Canada-wide warrants have been issued for Kam McLeod, 19, and Bryer Schmegelsky, 18, in connection with the death of the man, who was found a few kilometres from the teens' burned-out pickup truck on Highway 37 near Dease Lake on July 19.
Images have emerged of murdered Sydney traveller Lucas Fowler and his American girlfriend Chynna Deese hugging at a petrol station two days before their bodies were found beside their blue van on the side of a highway in British Columbia.
The mystery also deepened yesterday as police appealed for information on two missing teenagers whose burning truck was found next to the body of a man on Friday 500km away.
Canadian authorities released a sketch of an unknown man whose body was found near Dease Lake in British Columbia.
Mounties have confirmed that an abandoned vehicle found Monday near the Bird reserve in Manitoba is the grey 2011 Toyota RAV 4 the teens were seen driving in Saskatchewan.
Fowler and Deese were found shot to death outside their van south of Liard Hot Springs in Northeast B.C. July 15.
The RCMP released a composite sketch of a man believed to have been seen speaking to Fowler on July 14.
Fowler is the son of Police Chief Inspector Stephen Fowler of the southern Australian state of New South Wales, according to ABC.net.
The RCMP announced on Wednesday they have charged McLeod and Schmegelsky with Mr Dyck's second-degree murder. Later Tuesday, police said McLeod and Schmegelsky may be further east in Manitoba after a reported sighting in the remote northern town of Gillam.
Police said the pair were "victims of gun violence" after earlier revealing their bodies were "unrecognisable".
During a press conference on Tuesday, RCMP Sgt. Janelle Shoihet said they have been able to confirm that McLeod and Schmegelsky have left B.C. She said they're likely to continue travelling, but their destination is still unknown.
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They are also suspects in the suspicious death of an unidentified man in his 50s or 60s who was found two kilometres south of the burnt truck. They said they are going through "hours" of CCTV footage and that the investigation is painstaking.
The two teenagers were described as missing on Monday but police named them as suspects on Tuesday.
Chynna Deese is a 2017 graduate of Appalachian State University and lived in Charlotte, her family said.
The RCMP asked the public to come forward with any information.
Officials have warned that the two men are risky and should not be approached.
McLeod and Schmegelsky are originally from Port Alberni and were initially believed to be travelling through BC to get to Whitehorse in the Yukon Territory for work.
"We are truly heart broken by the sudden and tragic loss of Len", a statement from his family said.
"If you have plans to travel somewhere, make sure that somebody is aware of what your plans are and communicate the plans out and make them known if those plans change".
McLeod's father, Keith McLeod, released a statement talking up the compassionate nature of his son despite communities across Canada terrified of crossing paths with him.
From there, they were flown by a police aeroplane to Vancouver on Thursday after being placed in metal caskets to ensure any clues that would help identify their killer were not interfered with.