A good guy with a gun is the only way to counteract a bad guy(s) with a gun

SAS hero of the mall massacre: Off duty soldier with a handgun saved 100 lives as terrorists ran amok

Was having coffee at Westgate mall when it was attacked on Saturday

Returned to building a dozen times, despite intense gunfire

Sources said the soldier was with the Special Air Service, or SAS

Man, who can't be named for security reasons, was pictured with victims