A mother is left ‘shattered’ after her son, Joshua Barr, 31, was brutally murdered in Cambridge on what was meant to be a celebratory day. Stabbed multiple times, Barr’s death was linked to a debt owed by a friend. The convicted killers, Tyler Marshall and Cameron Stokes, received life sentences, highlighting the devastating impact of knife crime. In a poignant statement, Barr’s mother expressed her grief, stating that her reality has turned from color to black and white, mourning the loss of future memories and dreams. Chief Inspector Oliver Warsop underscored the widespread repercussions of such violence.