It was a surprising development in the case. Lois Goodman was in court for a preliminary hearing, but instead, she walked out a free woman.
"I'm just thrilled, get back to my life," she said.
The 70-year-old had been accused of killing her 80-year-old husband with a coffee mug last April in their Woodland Hills condominium. She was arrested in New York City in August just as she was about to serve as a line judge in a U.S. Open match.
Prosecutors said they had new information that has come forward, but did not say what that information was. The judge dismissed the case without prejudice, which means it could be brought back.
Goodman had maintained that she did not kill her husband, and according to her attorneys, she even passed a polygraph test.
Authorities initially believed Alan Goodman fell down stairs at home while his wife was away, but investigators later decided it was homicide after a mortuary reported suspicious injuries on his head.
The Associated Press contributed to this report.