Today's headlines include:

• At least ten people are dead following a mass shooting at a high school in a rural town in the Canadian province of British Columbia. 
• Australian snowboard cross veteran Cam Bolton has been airlifted to hospital after breaking his neck during training at the Winter Olympics, ending his fourth Olympic campaign. 
• A person has been detained for questioning over the alleged abduction of Nancy Guthrie, the mother of U.S. television host Savannah Guthrie. 
• And today’s good news: New research has found that playing a brain-training video game could protect against dementia for up to 20 years.

Reporting with AAP.

Hosts: Billi FitzSimons and Emma Gillespie
Producer: Rosa Bowden

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