Who is the speaker, who or what are they talking about, and what do their words tell you about them?

Quote in context:

'Here he is!' bawled Giles, calling in a state of great excitement, up the staircase; 'here's one of the thieves, ma'am! Here's a thief, miss! Wounded, miss! I shot him, miss; and Brittles held the light.'

Giles is speaking. He is speaking to Rose about Oliver, who has been caught robbing their home.

I think they are talking about how they are talking about that they think that oliveris the theif Giles is speaking .He is to Rose about oliver,who has been caught robbing their home.