After nearly 2.5 years behind bars, Cynthia Sommer is enjoying her first taste of freedom after being wrongfully convicted of murder.

"I was ecstatic, and I think I almost fainted," Sommer told INSIDE EDITION about finding out she was exonerated.  "It's a great feeling to be able to do what you want when you want to do it," she continued.

INSIDE EDITION caught up with her in New York City, where she was relaxing and enjoying her freedom.

"I really need to give back and that’s what I want to do.  I really want to help other innocent people be free," Sommer told INSIDE EDITION's April Woodard when asked about her plans.

It was just four days ago that an overjoyed Sommer walked out of jail in San Diego.  She was cleared of murdering her husband, Marine Sergeant Todd Sommer, with arsenic after new tests showed no traces of arsenic in his body.

"I may be able to forgive [the San Diego prosecutors], but I'll never forget."

Her lawyer, Allen Bloom, told INSIDE EDITION that they have not yet decided about filing a lawsuit for her wrongful conviction.  "The prosecution had based this case and this conviction not on the evidence but on Cynthia's lifestyle."

At her trial, prosecutors said she used her husband's life insurance money to buy breast implants, and had affairs with his marine buddies.

"Looking back, I probably would have done things differently.  I'm not proud of the things I've done...having the world know the things that I've done," said Sommer when April asked if she had any regrets.

Sommer says she is happiest about being reunited with her four kids.  "It's those 876 days, there is nothing that can bring those days back."

It turns out that there was no crime in this case.  Sommer's husband died of a heart attack.