“I was not particularly good at what I was doing,” he said.
A prosecutor has spent nearly two weeks portraying Gerhartsreiter as a fabulist whose outrageous stories hid a man with a murderous secret.
Defense attorneys have claimed that Linda Sohus, who was never found, killed her husband and the defendant had nothing to do with it.
They have declined to comment on whether he will testify in his own defense.
The trial has recessed until Tuesday.