Knife-wielding thief mugs pensioner in London as accomplice holds them in place

This is the sickening moment a knife-wielding mugger rifled through an elderly man's pockets while his friend held him in a headlock - as passersby fail to step in and help. CCTV footage shows the pensioner being grabbed by the two masked men on Beaconsfield Road in Southall, west London, at 9.15pm on January 16.