VANCOUVER, British Columbia (AP) — Police on Wednesday identified the suspect in a school shooting in Canada as an 18-year-old who had prior mental health calls to her home and who was found dead following the attack that killed nine people in a remote part of British Columbia.

Royal Canadian Mounted Police Deputy Commissioner Dwayne McDonald said Jesse Van Rootselaar had a history of mental health contact with police, and that the suspect’s mother and stepbrother were also found dead in a home near the school.

The motive remained unclear.

More than 25 people were wounded Tuesday in the attack in the small mountain community of Tumbler Ridge, including two with life-threatening injuries who were airlifted for medical care, police said.

The village of 2,700 people in the Canadian Rockies is more than 1,000 kilometers (600 miles) northeast of Vancouver, near the provincial border with Alberta.