"She knows this man better than anyone. She knows that if he wanted to have her killed, it would have happened," said Lewis.
But Yvonne Stern is open to what the investigation uncovers, if anything.
"Her eyes are wide open. She is not to the point of I am convinced beyond ever being convinced otherwise. She is standing by because of her convictions down on her belief but she has said to the prosecutor and in my presence , 'Show me, show me where I'm wrong. Give it to me,'" said Lewis.
If called upon, Yvonne Stern says she will testify. In the meantime, her husband is free on one million dollars bond, $500,000 for each first-degree felony. If Stern is convicted, his punishment will range from 5 to 99 years or life in prison and fine of up to $10,000.
Olivia Katrandjian contributed to this report.