She said she asked him about it and he said: "Don't worry about it" (or something to that effect).
That led me to wonder if he hadn't taken something himself to cause this.
That's what I was thinking. And with his wife's telling remark, I think she unwittingly outed him.
Then why would she repeat it? This was just a husband trying to reassure a very nervous wife that was desperately worried about an attempt on her life.
She freely says this in an interview, long after this happened.
She "outed" no one.
He was acting like man and trying not to worry a woman with three tiny children, including a six month old and a grandchild on the way.