‘You Have Not Broken Us:’ Families Give Statements in Calgary Triple Murder Case

The Calgary Courts Centre in Calgary, Alta., on March 11, 2019. The sister of a Calgary caseworker who was stabbed to death at an assisted-living home last month said Monday she lost her soulmate and doesn't want any other family to suffer the way hers has. Nancy Euwangue, who flew in from London, took in a court appearance for Brandon Newman, 18, who was charged with second-degree murder after the Oct. 25 death of Deborah Onwu. Jeff McIntosh/The Canadian Press

CALGARY—Tears flowed in a courtroom Friday during sentencing arguments for a man who admitted to slitting his girlfriend’s throat and, days later, stabbing to death his mother and stepfather.

Dustin Duthie, 27, had earlier pleaded guilty to second-degree murder in the 2018 deaths of Taylor Toller and Shawn Boshuk and firs-degree murder in the death of Alan Pennylegion.