Shocking video shows crossbow-wielding man threatening to 'assassinate the Queen'
By Rebecca Camber & Rebecca English
Chilling moment masked man with crossbow threatens to kill Queen in vid sent to pals minutes before cops...
By Matt Wilkinson, Mike Sullivan & Julia A.
Armed intruder arrested in the grounds of Windsor Castle as the Queen celebrated Christmas
By Arnaud Siad & Ivana Kottasová