08/29/2012 01:36 EDT | Updated 10/29/2012 05:12 EDT

Professional tennis referee pleads not guilty to murder of husband in Los Angeles

LOS ANGELES, Calif. - A professional tennis referee has pleaded not guilty in Los Angeles to allegations that she killed her 80-year-old husband.

Seventy-year-old Lois Ann Goodman appeared Wednesday to face charges that she bludgeoned her husband to death with a coffee mug in April.

Goodman won a reduction in bail from $1 million to $500,000 and will be released to home confinement when electronic monitoring is set up.

Authorities initially believed her husband most likely had fallen down stairs while she was away. They later decided it was murder and she was arrested last week in New York while preparing to work at the U.S. Open.

The prosecution asserted Wednesday that the victim was struck 10 times on the head.