KEMMERER, Wyo. (AP) — A 23-year-old man accused of killing a Utah train worker in western Wyoming has waived his right to a preliminary hearing.

Dereck James "DJ" Harrison made his initial court appearance Thursday in Kemmerer on Wyoming charges that could carry the death penalty.

The charges against Harrison include first-degree murder with premeditation and malice and first-degree murder while perpetrating a kidnapping.

No new court dates were scheduled.

Harrison was sentenced to at least 30 years in a Utah prison last year after pleading guilty to tying up a woman and her four daughters in a basement.

Prosecutors say after that, he and his father snatched and killed a train worker while on the run from police.

His father, Flint Harrison, killed himself in jail.