Gaynor led a team of other Blackhawk employees in robbing armored cars , until he was killed by Oliver Queen .
An employee , Theodore Gaynor ( played by Ben Browder ) , was John Diggle ( Oliver 's bodyguard ) 's former commanding officer in Afghanistan .
Gaynor led a team of other Blackhawk employees in robbing armored cars , until Theodore Gaynor was killed by Oliver Queen .
An employee , Theodore Gaynor ( played by Ben Browder ) , was John Diggle ( Oliver 's bodyguard ) 's former commanding officer in Afghanistan .