The body was discovered at the community of Emma Lake, about 45 kilometres north of Prince Albert. (Google Maps)

Saskatoon lawyer and long-time mental health advocate Ian Buckwold is the man killed at Emma Lake this weekend.

Police said they got a call Sunday afternoon at around 5:20 p.m. CST about a sudden death on Marine Drive at the popular resort about 45 kilometres north of Prince Albert.

When they arrived at the home, they found the body of 64-year-old Buckwold. They arrested a 31-year-old man at the scene without incident.

Saskatoon lawyer Henry Kloppenburg is a friend of the Buckwolds.

"Above all, (it's) a tragedy for his family," he said.

No charge has been laid yet, but RCMP investigators expect this will happen soon.

Police said more information would be released when the 31-year-old man is charged and appears in court.

Ian Buckwold worked as a lawyer, and in the community to help people with mental health issues. He co-chaired the campaign to build the Les and Irene Dube Centre, a 65-bed facility near Royal University Hospital. Buckwold's passion to help those with mental health concerns came, in part, from the challenges of having a son with schizophrenia.

Buckwold's father, Alvin, was a well-known Saskatoon pediatrician who co-founded Camp Easter Seal and worked with the Saskatchewan Abilities Council.

His uncle, Sidney, was a former mayor of Saskatoon.