CHEYENNE, Wyo. (AP) — A judge in Cheyenne has again postponed trial for a woman accused of killing her husband and dumping his body in a mine in southeast Wyoming the mid-1970s.

The attorney for 74-year-old Alice Uden, of Chadwick, Mo., says he needs more time to prepare her defense and asked Judge Steven Sharpe to postpone trial a second time.

Sharpe recently rescheduled from March 4 to April 29.

Uden has pleaded not guilty to first-degree murder. Prosecutors say she shot 25-year-old Ronald Holtz as he slept in late 1974 or early 1975.

Authorities arrested Uden and her current husband in separate murder cases in September. Seventy-one-year-old Gerald Uden pleaded guilty in November to killing his ex-wife and her two children in central Wyoming in 1980.

Investigators haven't linked the two murder cases.