Zimmerman spoke in an interview with
"I haven't seen him in a couple months, but it certainly seems like something snapped in his spirit," Zimmerman said.
"I certainly hope that there are no casualties. I hope that there's no violence, but he does seem like a ticking time bomb," she said. "I know I'm certainly afraid. I just hope that he can get maybe the help that he needs to deal with his situation and that no one else will be hurt."
Zimmerman told Couric she does not believe her husband deliberately killed Martin, an unarmed black teenager who was walking to a relative's house, the
But she did seem to have doubts about her husband's actions that night.
While Zimmerman described her husband as "emotionally abusive" recently, she said he was not like that when they married in 2007.
"We were great friends, and I thought he was a wonderful person. That's why I married him," she said.
She also said she was "selfish" when she did not file charges after police responded to a domestic violence situation in which her husband allegedly threatened her and her father.