OGEMA, Minn. — When a woman and her two sons were found dead inside their home on the White Earth Indian Reservation on March 18, the Minnesota Bureau of Criminal Apprehension was called to investigate.

More than one month later, the results of the autopsies have been released.

Emma Laroque, 28, shot and killed 4-year-old Frederick York and 9-year-year old Shane Woods was strangled and suffered numerous sharp force injuries, according to the reports.

Emma Laroque then shot and killed herself.

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While the reports provide more details about what happened, many questions remain unanswered about the killings.

Police have not said who called 911 that afternoon and have only said was they were called to the home for an "incident."

It's also unclear how long the mom and her sons had been dead inside the home.

They were the daughter and grandchildren of White Earth Public safety director Mike Laroque.

The Minnesota Bureau of Criminal Apprehension says the case is still open and active as investigators are still working to try and determine what may have caused the mother to commit the acts.

If you are having thoughts of suicide or if you are concerned for someone you know, call the National Suicide Prevention Hotline at 800-273-TALK (8255).