You’re citing the second interview. Read the first one.
I read the interview. In the beginning she says:
A: In our house and I don't know where, from where, form where I don't know
Q: From where
A: From where he got this big ol' I don't know what.
Q: You mean the gun?
A: The same one as they have, the SWAT team.
She is responding to the question of where the gun came from, the gun she noticed later. She's not saying he had the gun. She's just amazed that it turned up.