What a decent journalist would do is find out who was working at the Abilene Kinko's at the time the memos were sent, show him/her some pictures and see if we can get a positive ID on the sender. Since Burkett limps and uses a cane, it should be easy to verify or eliminate him. If it was Barnes or the lawyer or some other TX Dem party operative, then there's your smoking gun.
Month old eye-witness accounts from stoned Kinko's employees usually aren't too fruitful or reliable.
Burkett is well known at the Abilene Kinko's. He has an account there. Plus, the local Democrat party holds their meetings in a Kinko's meeting room.
The management has already agreed to hold the security tapes, "in case they are needed".
Assuming the memos were actually sent from there at that time. It would also have been possible that Burkett happened to fax something other than the memos to someone involved in the conspiracy, who then faked the transmission stamp on some memos to match the date/time of Burketts' fax. Forensic analysis would be needed to determine whether the memogate documents were actually sent from that Kinko's; it may prove that they likely were or that they certainly weren't, or it may be inconclusive.