10 killed in Austrian high school shooting

Austria will observe a national day of mourning and a minute’s silence on Wednesday after a former student shot dead 10 people at a high school in an unprecedented case of gun violence that stunned the Alpine country.

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The 21-year-old shooter acted alone and took his own life in the toilet at Dreierschuetzengasse high school in Graz, police said.

Investigators found a good-bye letter addressed to the suspect’s parents during a search of his residence, but it included no clues about his motive.

After arriving in Graz, Chancellor Christian Stocker described the shooting as “‘a national tragedy”.