A man sought in a double slaying and arson in Los Angeles has been tentatively scheduled for an extradition hearing Thursday, authorities said.

Lonnie Dave Lewis, 29, was being held without bail in Emery County Jail on a Los Angeles warrant charging two counts of homicide, said sheriff's detective Bill Downard.A Los Angeles-to-Denver bus was stopped in Green River, and Lewis, who purportedly attempted to flee, was arrested by Emery County deputies on Saturday.

The bus was stopped and the arrest made at the request of California authorities. Lewis' arrest came just an hour before Denver police arrested his brother, Jerome Martin, 21.

The charges against the men stem from an incident in which robbers allegedly tied up a couple and raped another woman before setting all three victims on fire.

The woman was shot in the arm when she tried to flee, authorities said. Sylvia Davis, 45, and Lee Gottstein, 57, died in their burning apartment, said Los Angeles police detective Wayne Horton.

Horton said when the fire department came to put out the fire, they found the two bodies inside. The victims had died of smoke inhalation and burns, he said.

The second woman, who was not identified, was found later outside the burning two-story building.

Martin was arrested six blocks from his mother's Denver home when his vehicle slammed into a parked car after a brief police chase. Denver police had set up surveillance outside the home shortly after Lewis' arrest.