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1935 killings of Royal Canadian Mounted Police officers

SOLVED1935Pelly, Saskatchewan and Banff, Alberta, Canada3 SOURCESUPDATED JUL 2026
Illustrative

Between 5 and 8 October 1935, a series of killings claimed the lives of three Royal Canadian Mounted Police officers and one local constable across three Canadian provinces, in what remained one of the deadliest incidents in RCMP history until 2005.

The events began late on 4 October 1935 when Benito Constable William Wainwright and RCMP Constable John Shaw apprehended three Doukhobor farmers — John Kalmakoff, Joseph Posnikoff, and Peter Woiken — in Benito, Manitoba, on suspicion of involvement in a bank robbery. Following standard practice of the era, the men were not searched before being placed in Shaw's unmarked police vehicle. At approximately 4:00 a.m. CST on 5 October, en route to the RCMP detachment in Pelly, Saskatchewan, the suspects attacked the officers with knives and a smuggled .32 revolver. Wainwright was stabbed and shot with his own revolver; Shaw was stabbed and shot three times while attempting to drive and defend himself. The vehicle crashed into a ditch, and the perpetrators looted it before fleeing. A local farmer discovered the officers' bodies on 7 October.

News of the murders spread to RCMP detachments across western Alberta by the evening of 7 October. Off-duty Sergeant Thomas Seller Wallace and Constable G.E. Combe joined uniformed officers George "Scotty" Harrison and Grey Campbell in the search. That evening, the fugitives were spotted at a service station near Canmore, Alberta, after station owners recognized them from radio broadcasts. On 8 October, the men robbed a motorist, C.T. Scott, and followed his vehicle toward Banff. Scott alerted officers at an RCMP checkpoint near the park's eastern gate. When Wallace and Harrison approached the suspects' vehicle, its occupants fired through the windshield, wounding both officers fatally. Harrison was shot in the neck; both men returned fire before losing consciousness. The perpetrators fled into the bush, where Constable Combe shot and killed Joseph Posnikoff.

That evening, armed residents formed posses alongside RCMP officers to pursue the two remaining fugitives, Kalmakoff and Woiken. Sergeant John Cawsey and his police dog Dale assisted in the search. Banff Park Game Warden and former RCMP officer William Neish located the pair amid worsening weather and, after an exchange of gunfire, fatally shot both Woiken and Kalmakoff.

Wallace and Harrison later died of their wounds in Calgary and received full Masonic and military funerals. Constable Shaw, a Royal Flying Corps veteran, was buried with military honours in Swan River, Manitoba. Local outrage led to the perpetrators being denied burial in Banff; Posnikoff and Woiken were buried in unmarked graves in Morley, Alberta, while Kalmakoff's family reclaimed his body for burial in Saskatchewan. The motive for the initial attack on Wainwright and Shaw was never established, as all three perpetrators died during the manhunt.

Key facts

Victims
Thomas Seller Wallace, William Wainwright, George Harrison, John Shaw
Date
1935
Location
Pelly, Saskatchewan and Banff, Alberta, Canada
Case status
solved

Case timeline

  1. 1935-10-04

    Constables William Wainwright and John Shaw apprehend John Kalmakoff, Joseph Posnikoff, and Peter Woiken in Benito, Manitoba, on suspicion of bank robbery.

  2. 1935-10-05

    En route to Pelly, Saskatchewan, the suspects attack and kill Wainwright and Shaw using knives and a smuggled revolver; the vehicle crashes and the men flee.

  3. 1935-10-07

    A local farmer discovers the bodies of Wainwright and Shaw; news of the murders reaches RCMP detachments in Alberta. Fugitives are spotted near Canmore, Alberta.

  4. 1935-10-08

    Fugitives rob motorist C.T. Scott and are intercepted at an RCMP checkpoint in Banff, Alberta; a shootout mortally wounds Sergeant Thomas Wallace and Constable George Harrison. Constable G.E. Combe kills Joseph Posnikoff. Later that day, Game Warden William Neish kills Peter Woiken and John Kalmakoff during a manhunt.

Best coverage

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People

  • Joseph Posnikoff

    CHARGED

    Doukhobor man suspected in the killings of Wainwright and Shaw; killed by Constable G.E. Combe during the Banff shootout on 8 October 1935 before any trial.

  • John Cawsey

    LAW ENFORCEMENT

    RCMP sergeant who led a search team with his police dog Dale during the manhunt for Kalmakoff and Woiken.

  • G.E. Combe

    LAW ENFORCEMENT

    RCMP constable who shot and killed Joseph Posnikoff during the Banff shootout.

  • Grey Campbell

    LAW ENFORCEMENT

    RCMP constable involved in the pursuit and arrest efforts in Banff.

  • William Neish

    LAW ENFORCEMENT

    Banff Park Game Warden and former RCMP officer who located and fatally shot Woiken and Kalmakoff during the manhunt.

  • John Kalmakoff

    CHARGED

    Doukhobor man suspected in the killings of Wainwright and Shaw; killed by Game Warden William Neish on 8 October 1935 before any trial.

  • Peter Woiken

    CHARGED

    Doukhobor man suspected in the killings of Wainwright and Shaw; killed by Game Warden William Neish on 8 October 1935 before any trial.

  • Thomas Seller Wallace

    VICTIM

    RCMP sergeant fatally wounded in the Banff shootout on 8 October 1935; died in Calgary.

  • William Wainwright

    VICTIM

    Benito constable killed near Pelly, Saskatchewan, on 5 October 1935.

  • George Harrison

    VICTIM

    RCMP constable, known as 'Scotty,' fatally wounded in the Banff shootout on 8 October 1935; died in Calgary.

  • John Shaw

    VICTIM

    RCMP constable and Royal Flying Corps veteran killed near Pelly, Saskatchewan, on 5 October 1935.

Roles reflect public records and court outcomes at the time of writing — supporting citations are on file under Sources.

Places

Pelly, Saskatchewan and Banff, Alberta, Canada

51.1784, -115.5708

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Common questions

What happened to Royal?
In October 1935, three Doukhobor men in RCMP custody killed a local constable and an RCMP officer near Pelly, Saskatchewan, then fled west, killing two more RCMP officers in a shootout in Banff, Alberta, before all three perpetrators were killed by law enforcement and a park warden.
Where did the killings happen?
Pelly, Saskatchewan and Banff, Alberta, Canada.
What is the current status of the case?
Status: solved. Last verified July 2026.
More cases in Alberta

Sources

  1. ENCYCLOPEDIC1935 killings of Royal Canadian Mounted Police officersWikipedia · 2026-07-07
  2. PRESSContemporaneous coverage — edmrcmpvets.caedmrcmpvets.ca · 2026-07-07
  3. PRESSContemporaneous coverage — people.ucalgary.capeople.ucalgary.ca · 2026-07-07

Record history

First published
JUL 07, 2026
Last verified against sources
JUL 07, 2026