A millionaire real estate broker with long ties to the Jewish Defense League has been indicted by a federal grand jury in the 1980 bombing death of a Manhattan Beach secretary in what authorities believe was a murder-for-profit scheme over a soured real estate deal.

The arrest of William Ross, 51, Thursday night was the second made by authorities for the bombing of the now-defunct Prowest Computer Corp. in which a 35-year-old woman, Pamela Wilkerson, was killed when she plugged in an explosive device.A woman with dual U.S.-Israeli citizenship, Rochelle Ida Manning, 48, has already been arrested in the case, and her Los Angeles-born husband, who also was indicted for the murder, Robert Steven Manning, 36, remains a fugitive in Israel.

Both are also considered suspects in the 1985 bombing of the Santa Ana offices of the Arab-American Anti-Discrimination Committee in which activist Alex Odeh was killed.

The bombing attack was allegedly arranged by Ross and was motivated by his anger for a bitter 1977 dispute over the purchase of a house in Manhattan Beach, according to postal authorities.