ARAPAHO, Okla. —A Texas man accused of killing two people while randomly firing his gun along an Oklahoma interstate was charged Monday with first-degree murder.

Jeremy Doss Hardy, 36, of Pasadena, Texas, was arraigned in Custer County, where he was arrested about an hour after reports came in Wednesday night about a man in a pickup truck firing a gun along Interstate 40, west of Oklahoma City.

Authorities identified the first victim as 45-year-old Jeffrey Kent Powell of Arapaho. He was traveling with his wife, who was not struck. The second victim was 63-year-old Billie Jean West of Lone Wolf.

Police have said the suspected shooter sped through three counties in the night while randomly firing from his truck, hitting at least four vehicles, and surrendered after a 25-mile chase shortly before 1 a.m. Thursday.

Hardy was initially jailed for driving under the influence. Prosecutors added the two first-degree murder charges Monday during a hearing in Custer County court He was ordered held without bond.