Yes that makes sense.
I can tell you, brother was mostly honest.
When he testified about thinking it was TM voice now, he was lying.
It was more than obvious...should have been to the expert.
But he was very uncomfortable about the lying... and my guess is he normally tries to be an honest person. He has not convinced himself enough that it was TM’s voice to be able to be able to believe what he was saying....and come across as believing his own lies. He knew he was lying and his body language betrayed him.
The ME has no clue how long Martin was alive after being shot....Total pure speculation...