One of the mentioned possible identities of "Albert Johnson" is Arthur Nelson.
Arthur Nelson was a lone trapper and reclusive individual who was believed to be part Swedish, or at least of Scandananian ancestry. He trapped in the Canadian Yukon area from the mid to late 1920's, often living on the outskirts of settlements. He traveled without dogs and was known to carry a Savage model 99 lever action rifle.
He was also suspected of committing a series of unsolved murders. Among them:
Charles Taylor (aka Yukon Fisher) was murdered in 1927 and his cabin burned near Fall River.
On 5 October 1928, three persons went missing. Elizabeth Ray, wood cutter John Timson, and Dr. J. O. Chappelle were traveling in Chapplle's canoe from Stewart Island to Dawson City on the Yukon River, a distance of 75 miles. Their bodies were never found, nor was a quantity of jewelry reportedly carried by Ms. Ray. The Canoe was located, shot through with a bullet. The Doctor's cocker spaniel was also found alive.
In May 1929, Angus Hall, James Gilroy, and Andrew Hay all disappeared in the South Nahanni River area.
In 1932, the body of Phil Powers was found in a burnt out cabin near Fall River. His head had been crushed.
While mostly circumstantial evidence such as rudimentary identification and Nelson's presence in the area of these cases at the times point to him as a serial killer, the finding of gold teeth and bridge work in the possession of "Albert Johnson" strengthens the possibility that Nelson and Johnson were one and the same.
If "Johnson" was in fact a serial killer, it would certainly explain his shoot outs with and flight from the Mounties.
Nelson carried the same type of rifle found with Johnson's body, and he seems to have disappeared at the same time of Johnson's death.
Although Arthur Nelson might have been Albert Johnson, could both names have been aliases?