Hero who used narwhal tusk to stop UK attack praises victims

Tributes are placed by the southern end of London Bridge Dec. 2, three days after a man stabbed two people to death and injured three others before being shot dead by police. (AP Photo/Matt Dunham, file)

Darryn Frost. (Darryn Frost/ via AP)

LONDON — A mysterious figure who used a rare narwhal tusk to help subdue a knife-wielding extremist on London Bridge last month has been identified as a civil servant in Britain’s Justice Ministry.