Complex sentence: The deposition footage confirmed that Owens did not know JT LeRoy's true identity (that he wasn't speaking with a young transgender HIV positive boy), and all of the the therapy he did with "JT LeRoy" was over a phone.
Split into simpler sentences: The deposition footage confirmed that Owens did not JT LeRoy's true identity. All of the the therapy he did with "JT LeRoy" was over a phone.