A series of stabbings in and around an Indigenous community in Canada last month was carried out entirely by one of the two brothers accused of the frenzy, authorities said Thursday.
Myles Sanderson, 32, was also responsible for the murder of his brother, Damien Sanderson, 31, said Rhonda Blackmore, a commander with the Royal Canadian Mounted Police.
In a statement, Blackmore said the total number of deaths now attributed to Myles Sanderson is 11.
Authorities had previously charged both brothers with the Sept. 4 murders in the James Smith Cree Nation and Weldon in Saskatchewan. Eighteen people were also injured in the attacks.
Damien Sanderson was involved in the initial planning and preparation of the stabbings, Blackmore said, although the extent of his involvement remained unclear.
After a preliminary investigation based on victim and eyewitness accounts, murder, attempted murder and burglary were filed against Damien Sanderson the day after the stabbing, Blackmore said.
“The Saskatchewan RCMP feels it is important to clarify Damien’s involvement in the sequence of these events to demonstrate our continued commitment to transparency to the victims and families of those affected and to the public,” she said.
Damien Sanderson was found dead on Sept. 6 in what authorities have previously described as an “area with lots of grass near a house” in the James Cree Nation. He had visible injuries that were not his own, Blackmore said last month.
In her statement on Thursday, Blackmore did not provide additional details about his death or how investigators determined Myles Sanderson killed him.
Myles Sanderson, who police previously said was 30 years old, died on September 7 after a chase with authorities. While in custody, he fell “in medical emergency” and was pronounced dead at a hospital in Saskatoon.
His cause of death remains unclear, as does a possible motive.
Blackmore said investigators continued to review witness statements, physical evidence and other information to determine the motive and why some victims were targeted.
“This will take time to complete and the reality is we may never know exactly why,” she said.