10/22/2012 08:33 EDT | Updated 12/22/2012 05:12 EST

Michelle Earp Charged With Second-Degree Murder In Death Of Roberta Iron Shirt On Siksika First Nation

GLEICHEN, Alta. - A woman is facing charges in the death of a 65-year-old resident on an Alberta First Nation.

Mounties say they found an unresponsive woman in a home on the Siksika First Nation early Sunday.

The woman, identified as Roberta Iron Shirt, was declared dead at the scene.

An autopsy is scheduled for Tuesday.

Michelle Earp, who is 45, is charged with second-degree murder.

Earp is being held in custody until her court appearance Thursday.