I don’t think it’s known that she committed perjury in her testimony.
She admitted to lying on SM, but that’s not sworn testimony, so that’s not perjury.
I’m not certain what posters are referring to when they say she lied on the stand, but I suspect it’s her statement that she did not have recording devices other than the one in her barn locker.
They are assuming she had a listening device in the office clubhouse. However, it has not been established that she did have a listening devices anywhere other than her locker, so I see no evidence of perjury.
Her statements about minute physical details of the actual shooting have varied over time and may have slight inconsistencies with the statements of RG, but an imperfect recall of a traumatic event, especially after almost bleeding out and having been in a coma is imperfect recall, not perjury.