<a href="https://en.wikipedia.org/wiki/Mayerthorpe_tragedy" id="mwARI" rel="mw:WikiLink" title="Mayerthorpe tragedy">James Roszko</a> murders four <a href="https://en.wikipedia.org/wiki/Royal_Canadian_Mounted_Police" id="mwARM" rel="mw:WikiLink" title="Royal Canadian Mounted Police">Royal Canadian Mounted Police</a> constables during a drug bust at his property in <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Rochfort_Bridge,_Alberta" id="mwARQ" rel="mw:WikiLink" title="Rochfort Bridge, Alberta">Rochfort Bridge, Alberta</a>, then commits suicide. This is the deadliest peace-time incident for the RCMP since 1885 and the <a href="https://en.wikipedia.org/wiki/North-West_Rebellion" id="mwARU" rel="mw:WikiLink" title="North-West Rebellion">North-West Rebellion</a>.