(5) Is absent from the hearing and the proponent of the statement has been unable to procure the declarant's attendance or, in the case of exceptions under paragraph (2), (3), or (4) of subsection (b) of this Code section, the declarant's attendance or testimony, by process or other reasonable means.
A declarant shall not be deemed unavailable as a witness if the declarant's exemption, refusal, claim of lack of memory, inability, or absence is due to the procurement or wrongdoing of the proponent of a statement for the purpose of preventing the witness from attending or testifying.